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1
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Brauer HU, Bartols A. Gemination of an Erupted Mandibular Third Molar: A Short Presentation of an Exceptionally Rare Clinical Occurrence. Eur J Dent 2024; 18:687-691. [PMID: 37729927 PMCID: PMC11132766 DOI: 10.1055/s-0043-1772248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023] Open
Abstract
Double teeth, like fusions and geminations, are rare disorders of tooth development. In this short case presentation, we describe the unique appearance of a fully erupted mandibular wisdom tooth in a 72-year-old patient whose tooth exhibited gemination. This was possible because tooth 46 had to be removed from the patient at the age of 20 and the missing molar was not replaced. This geminated tooth of 48 had been in function for almost 50 years and finally had to be removed due to a periodontal inflammation. To the best of our knowledge, this is the first case presented of this dental anomaly for a fully erupted lower wisdom tooth.
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Affiliation(s)
- Hans Ulrich Brauer
- Dental Academy for Continuing Professional Development, Karlsruhe, Germany
| | - Andreas Bartols
- Dental Academy for Continuing Professional Development, Karlsruhe, Germany
- Clinic for Conservative Dentistry and Periodontology, Christian-Albrechts-University Kiel, Germany
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2
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Zhou Y, Tao Y. Endodontic management of maxillary first molar with protostylid: a rare case report. BMC Oral Health 2023; 23:606. [PMID: 37644464 PMCID: PMC10467028 DOI: 10.1186/s12903-023-03315-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/14/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND A protostylid is a relatively rare dental developmental aberration characterized as an extra cusp located on the mesial half of the buccal surface of the molars. A protostylid is rarely to be reported due to its low rate of occurrence. This case report describes a patient referred for endodontic treatment due to the presence of a protostylid on the buccal surface of the maxillary first molar that induced apical periodontitis. CASE PRESENTATION A 53-year-old female reported a 3-month history of pain of chewing with her upper left posterior teeth over 3 months. In the clinical examination, an abraded anomalous cusp-like structure was found on the buccal surface of tooth 26, Cone beam computed tomography (CBCT) revealed a supernumerary cusp with an intact root canal inside, which was fused with the mesiobuccal (MB) root canal in the middle of the root. In addition, extensive periapical radiolucency was observed around tooth 26. The tooth was diagnosed as apical periodontitis, and endodontic treatment was performed. The initial lesion in tooth 26 gradually healed over 1 year of observation. CONCLUSIONS To our knowledge, this case is the first to describe the endodontic management of a maxillary first molar with a protostylid and advances our understanding of supernumerary cusps. This case provides a reference for the treatment of protostylid.
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Affiliation(s)
- Yang Zhou
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, No.56, Lingyuan West Road, Guangzhou, 510055, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Ye Tao
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, No.56, Lingyuan West Road, Guangzhou, 510055, China.
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, China.
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3
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Shekhar MG, Almugla YM, Mohan R, AlNasser BM. Concomitant Crown Dilaceration and Concrescence in Maxillary Incisors following Trauma to their Primary Predecessors: A Case Report. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2023; 15:S1341-S1343. [PMID: 37694081 PMCID: PMC10485490 DOI: 10.4103/jpbs.jpbs_133_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 02/17/2023] [Accepted: 02/18/2023] [Indexed: 09/12/2023] Open
Abstract
Developmental disturbances in the permanent dentition are commonly seen due to traumatic injuries to the primary teeth, especially intrusive and avulsion injuries of the overlaying primary incisors. These disturbances may range from enamel discoloration or hypoplasia, crown/root dilaceration, odontoma-like malformation and eruption disturbances. Concrescence is extremely rare in anterior teeth. This case report describes a rare case that showed a concrescence of the unerupted maxillary right lateral incisor and maxillary central incisor with crown dilaceration. Awareness regarding early diagnosis and the consequences of untreated trauma to primary teeth should be emphasized.
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Affiliation(s)
- Madiraju G. Shekhar
- Department of Preventive Dental Sciences, King Faisal University, Al Ahsa, Saudi Arabia
| | - Yousef M. Almugla
- Department of Preventive Dental Sciences, King Faisal University, Al Ahsa, Saudi Arabia
| | - Rohini Mohan
- Port Talbot Research Centre, Community Dental Services, Swansea Bay University Health Board, Port Talbot SA12 7BJ, UK
| | - Basil M. AlNasser
- Dental Student, College of Dentistry, King Faisal University, Al Ahsa, Saudi Arabia
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4
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Macrodontia and double teeth: a review and case series. Br Dent J 2023; 234:315-321. [PMID: 36899237 DOI: 10.1038/s41415-023-5571-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 11/07/2022] [Indexed: 03/12/2023]
Abstract
Macrodontia is a dental anomaly pertaining to the increased size of a tooth or multiple teeth. Double teeth are dental abnormalities concerning tooth morphology and the term traditionally refers to geminated or fused teeth. These anomalies may manifest in both primary and permanent dentitions and usually become apparent in childhood. They may cause a variety of clinical sequelae, including orthodontic complications, such as crowding, ectopic eruption of adjacent teeth and periodontal concerns. Double teeth are also at a higher risk of developing caries. The aesthetic implications of these dental anomalies can affect the psychosocial development of a patient. This, together with the range of functional repercussions, can often need dental treatment to improve quality of life. The functional and aesthetic complexities that may arise in the affected patients can require endodontic, restorative, surgical and/or orthodontic input as part of the management strategy and execution. We present four clinical cases of paediatric patients where a range of management approaches were employed for both macrodontia and double teeth.
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Su J, Shao LM, Wang LC, He LJ, Pu YL, Li YB, Zhang WY. Concrescence of maxillary second molar and impacted third molar: A case report. World J Clin Cases 2022; 10:10286-10292. [PMID: 36246819 PMCID: PMC9561566 DOI: 10.12998/wjcc.v10.i28.10286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/06/2022] [Accepted: 08/25/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Morphological anomalies of teeth, including talon cusp, dens evaginatus, gemination, fusion, concrescence, root dilaceration, and taurodontism, always involve changes in the enamel, cementum and dentin. Diagnosing concrescent teeth through routine clinical examination alone is difficult, and most cases of concrescence are found accidentally during extraction. A definite preoperative diagnosis of concrescence would contribute to a better treatment plan and fewer undesirable complications
CASE SUMMARY A 47-year-old woman who complained of left maxillary first molar loss for half a year presented to our department seeking treatment by dental implant restoration. Panoramic radiography and cone-beam computed tomography (CBCT) showed an unclear boundary between the distal root of the second molar and the mesial root of the third molar. The teeth were extracted under local anesthesia, and a definite diagnosis of concrescence was made by histopathological examination.
CONCLUSION CBCT is a useful tool for diagnosing and planning the management of tooth concrescence and may be beneficial for reducing unnecessary complications.
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Affiliation(s)
- Jun Su
- Department of Stomatology, 920th Hospital of the Joint Logistics Support Force, Kunming 650032, Yunnan Province, China
| | - Li-Mei Shao
- Department of Stomatology, 920th Hospital of the Joint Logistics Support Force, Kunming 650032, Yunnan Province, China
| | - Lian-Cheng Wang
- Department of Stomatology, 920th Hospital of the Joint Logistics Support Force, Kunming 650032, Yunnan Province, China
| | - Li-Jia He
- Department of Stomatology, 920th Hospital of the Joint Logistics Support Force, Kunming 650032, Yunnan Province, China
| | - Ya-Liu Pu
- Department of Stomatology, 920th Hospital of the Joint Logistics Support Force, Kunming 650032, Yunnan Province, China
| | - Yan-Bo Li
- Department of Stomatology, 920th Hospital of the Joint Logistics Support Force, Kunming 650032, Yunnan Province, China
| | - Wen-Yun Zhang
- Department of Stomatology, 920th Hospital of the Joint Logistics Support Force, Kunming 650032, Yunnan Province, China
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6
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A Rare Case of Concrescence of Mandibular Third Molar and Supernumerary Fourth Molar. Case Rep Dent 2022; 2022:3771299. [PMID: 36090692 PMCID: PMC9452987 DOI: 10.1155/2022/3771299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 07/11/2022] [Accepted: 07/25/2022] [Indexed: 11/18/2022] Open
Abstract
Concrescence reveals a rare developmental anomaly in which two fully formed teeth are joined along the root surfaces by cementum, and generally occurs in maxillary molars, especially in a third molar and a supernumerary tooth. Very few cases have been reported about the concrescence of a third molar and a supernumerary fourth molar. Based on our available knowledge, this case report described a rare presentation in which concrescence is observed between a third molar and a supernumerary fourth molar in the mandible by diagnosing with cone-beam CT and histological examination.
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Xu Y, Sun J. Concrescence of the right maxillary second and third molars: A case report. Clin Case Rep 2022; 10:e05824. [PMID: 35540717 PMCID: PMC9069359 DOI: 10.1002/ccr3.5824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/27/2022] [Accepted: 04/04/2022] [Indexed: 11/26/2022] Open
Abstract
Herein, we reported a rare case of concrescence of #17 and #18, including the clinical and imaging findings. After extracting the concrescence, the fistula on #17 gradually disappeared. In addition, we analyzed the histological etiology and clinical diagnosis and treatment of concrescence from the sight of periodontal functional stimulation.
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Affiliation(s)
- Yan Xu
- Department of StomatologyShenzhen Luohu People's Hospital (The Third Affiliated Hospital of Shenzhen University)GuangdongChina
| | - Jin Sun
- Stomatology Health Care CenterAffiliated Shenzhen Maternity & Child Healthcare HospitalSouthern Medical UniversityGuangdongChina
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Woźniak Ł, Łukaszuk K, Antonowicz B, Szarmach J, Borys J. Concrescent Teeth: Extraction Implications - A Case Report. Open Dent J 2022. [DOI: 10.2174/18742106-v16-e2201311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background:
Concrescent teeth belong to the group of double teeth with disturbed anatomy of shape and structure. The concrescence consists of the aggregation of root cementum of adjacent teeth. This anomaly usually concerns the upper teeth in the lateral part of the jaw. Concrescent teeth can be treated conservatively, endodontically, orthodontically and surgically.
Objective:
The aim of this article is to present the case of the concrescence of upper teeth, a second molar tooth with an impacted third molar, and to draw the attention of clinicians to this rare anomaly that may cause medical and legal problems.
Case presentation:
This article presents the case of a 53-year-old woman who reported to the dentist’s office to extract tooth 17 due to chronic periodontitis and an impacted and abnormally placed tooth 18.
Result:
During the extraction, concrescence of the teeth was noted. The teeth were removed, and the alveoli were surgically treated. The postoperative period was uncomplicated.
Conclusion:
In this paper, the authors draw the attention of clinicians to the fact that the occurrence of concrescent teeth in clinical practice is rare and that it is difficult to diagnose this anomaly on the basis of routine radiological diagnostics based on 2D images. They also point to the necessity of a thorough physical examination and a thorough assessment of teeth before extraction, the extension of imaging diagnostics by conical CT scan in justified cases, and informing the patient about possible complications. In order to avoid serious complications, the extraction of the concrescent teeth should be performed by an experienced specialist in dental or maxillofacial surgery.
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Sato M, Garcia-Sanchez A, Sanchez S, Chen IP. Use of 3-dimensional-Printed Guide in Hemisection and Autotransplantation of a Fusion Tooth: A Case Report. J Endod 2021; 47:526-531. [PMID: 33352149 DOI: 10.1016/j.joen.2020.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/02/2020] [Accepted: 12/12/2020] [Indexed: 02/06/2023]
Abstract
Three-dimensional (3D)-printed guides have been used in endodontics to prepare a conservative access, locate calcified or missing canals, and perform precisive osteotomy in apicoectomy. Here, we present the treatment of a fusion tooth by combining 3D printing technology and endodontic intervention in a 10-year-old patient. The bifid crown of a maxillary right lateral incisor #7 had caused esthetic concerns and malocclusion. Clinical and radiographic examinations showed that #7 is fused with a supernumerary tooth with 2 independent root canals. The fusion involved the entire crown and the coronal and middle roots. Because of financial constraints, a multidisciplinary approach involving endodontic, orthodontic, and prosthodontic treatment was excluded. We hemisectioned the tooth intraorally with a 3D-printed guide, extracted the supernumerary tooth, and transplanted tooth #7 to a position with improved esthetics and occlusion. A 3D-printed tooth replica was used to prepare the recipient site for autotransplantation. At the 6-month follow-up, tooth #7 was diagnosed with pulp necrosis and asymptomatic apical periodontitis. Root canal treatment of tooth #7 was completed, and osseous healing was observed 8 months later. The patient had no clinical symptoms and was satisfied with the outcome 14 months after hemisection and transplantation. The open space between teeth #7 and #8 was closed without orthodontic treatment. We present an alternative option to treat a fusion tooth in young patients who do not opt for other treatment options because of their stage of development or for socio-economic reasons. Techniques in modern endodontics, such as cone-beam computed tomographic imaging and 3D printing, should be adapted when it is beneficial to patients.
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Affiliation(s)
- Manuel Sato
- Department of Oral Health and Diagnostic Sciences, School of Dental Medicine, University of Connecticut Health, Farmington, Connecticut
| | - Alvaro Garcia-Sanchez
- Department of Oral Health and Diagnostic Sciences, School of Dental Medicine, University of Connecticut Health, Farmington, Connecticut
| | - Sergio Sanchez
- Department of Craniofacial Sciences, School of Dental Medicine, University of Connecticut Health, Farmington, Connecticut
| | - I-Ping Chen
- Department of Oral Health and Diagnostic Sciences, School of Dental Medicine, University of Connecticut Health, Farmington, Connecticut.
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10
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Consolaro A, Hadaya O, Miranda DAO, Consolaro RB. Concrescence: can the teeth involved be moved or separated? Dental Press J Orthod 2020; 25:20-25. [PMID: 32215473 PMCID: PMC7077949 DOI: 10.1590/2177-6709.25.1.020-026.oin] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 12/16/2019] [Indexed: 11/22/2022] Open
Abstract
The atrophy of the periodontal ligament places the tooth very close to the bone or another tooth, as occurs in unerupted teeth. The absent interdental bone and the lack of functional periodontal stimulus may lead to the fusion of the appositional layers of cement between the roots of the teeth. Concrescence almost always occurs in the region of the maxillary molars. Asymptomatic, it should always be remembered when the proper response to orthodontic movement is not obtained, and there is no apparent explanation. When surgically extracting a tooth and there is resistance, insisting will not be the best strategy. Moving the teeth with concrescence is not convenient, as it requires very intense forces. Once separated, these teeth can be considered normal for movement. It is possible to separate two teeth presenting concrescence, but it depends on the extension of the area, the surgical access and, especially, the clinical convenience. The tooth to be extracted will be repaired with new cement deposited in the sectioned area. The simple separation with the maintenance of the proximity and the lack of function of one of the teeth will cause a new concrescence. After a period of 1 to 3 months, the separated teeth are biologically prepared to be moved. The most important detail in this separation of teeth presenting concrescence is that the diagnosis should be made in advance, and not at the time of the intervention.
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Affiliation(s)
- Alberto Consolaro
- Universidade de São Paulo, Faculdade de Odontologia de Bauru (Bauru/SP, Brazil)
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Dąbrowski P, Nowakowski D, Gawlikowska-Sroka A, Maciuszczak I, Gronkiewicz S. A case of concrescent tooth-A developmental anomaly in a 19th century skull from Uganda. INTERNATIONAL JOURNAL OF PALEOPATHOLOGY 2017; 18:21-25. [PMID: 28888388 DOI: 10.1016/j.ijpp.2017.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 04/20/2017] [Accepted: 04/25/2017] [Indexed: 06/07/2023]
Abstract
Dental abnormalities in archeological material such us concrescence or odontoma are rare cases often found accidentally, mostly during routine X-ray analysis or during macroscopic examination of the mastication apparatus. In this study, we present a rare case of concrescence between an upper left third molar and a supernumerary fourth molar in a 19th century skull from Uganda. Simultaneously, it is a critical revision of earlier studies on the same object (which considered this abnormality as an odontoma), using dental X-ray imaging and histological analysis. Concrescence is a rare dental anomaly and this specimen is, to the best of our knowledge, the first such case reported in paleopathological studies of Eastern Africa. It may contribute to recognition and identification of etiopathogenetic factors in dental developmental defects in historical and contemporary populations of Africa.
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Affiliation(s)
- P Dąbrowski
- Department of Normal Anatomy, Wrocław Medical University, Wrocław, Poland
| | - D Nowakowski
- Department of Anthropology, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - A Gawlikowska-Sroka
- Department of General and Clinical Anatomy, Pomeranian Medical University, Szczecin, Poland
| | - I Maciuszczak
- ARCHEOPOLIS Archeological Company. Izabela Maciuszczak. Miłocice, Poland
| | - S Gronkiewicz
- Anthropology Institute, Polish Academy of Science, Wrocław, Poland
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12
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Abstract
Dental concrescence is a rare dental abnormality resulting in the joining of two teeth at the level of the cementum. This is the first reported case of the orthodontic management of a dental concrescence and the options for patient treatment are discussed. In this case, a compromised occlusal result was accepted with restorative masking of the affected teeth.
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Affiliation(s)
- Nicky David Stanford
- a Orthodontic Department , Liverpool University Dental Hospital , Liverpool , UK
| | - Sara Hosni
- a Orthodontic Department , Liverpool University Dental Hospital , Liverpool , UK
| | - Tim Morris
- b Orthodontic Department , Southport and Ormskirk NHS Trust , Ormskirk , UK
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13
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Cases of teeth concrescence in the Pacific walrus (Odobenus rosmarus divergens). RUSSIAN JOURNAL OF THERIOLOGY 2017. [DOI: 10.15298/rusjtheriol.16.1.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Concrescence: Cone-Beam Computed Tomography Imaging Perspective. Case Rep Dent 2016; 2016:8597872. [PMID: 27800194 PMCID: PMC5075290 DOI: 10.1155/2016/8597872] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 09/14/2016] [Indexed: 11/17/2022] Open
Abstract
Concrescence is a form of twinning, formed by the confluence of cementum of two teeth at the root level. The diagnosis of concrescence has largely relied on the conventional 2D imaging. The 2D imaging has inherent limitations such as distortion and superimposition. Cone-Beam CT eliminates these limitations. The aim of this article was to describe a case of dental abnormality using Cone-Beam CT imaging modality. Volumetric data demonstrated confluence of left mandibular third molar with a paramolar, a supernumerary tooth. To our knowledge, this is the second case in the dental literature reported demonstrating the use of Cone-Beam CT in the diagnosis of concrescence.
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Abstract
Concrescence is a rare dental anomaly whereby adjacent teeth are united by cementum. It has been reported to occur in around 0.8% of permanent dental extractions and a correct diagnosis prior to surgical intervention is important to ensure that patients can make an informed decision about their treatment and to reduce the potential for dentolegal action against the responsible clinician. An 83-year-old woman was referred to the Oral and Maxillofacial Surgery Department at the Wirral University Teaching Hospital, for extraction of her upper left first molar tooth. The operator noted that, when the upper left first molar was extracted, the upper left second molar tooth was also removed. Clinically, the roots of the adjacent teeth appeared fused and a diagnosis of concrescence was established. The patient was informed of the complication and provided with a 1-week review appointment, at which stage she was discharged.
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Affiliation(s)
- Daniel Palermo
- Department of Oral & Maxillofacial Surgery, Arrowe Park Hospital, Upton, Merseyside, UK Department of Oral & Maxillofacial Surgery, Alder Hey Children's NHS Foundation Trust, Liverpool, Merseyside, UK
| | - Ayisha Davies-House
- Department of Oral Surgery, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, UK
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Jiang K, Che C, Ding Z, Zeng S, Wang W, He X. Precision diagnosis and antidiastole on supernumerary cusp of tooth by CBCT. Surg Radiol Anat 2016; 38:1099-1104. [PMID: 26861010 DOI: 10.1007/s00276-016-1636-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 01/25/2016] [Indexed: 11/24/2022]
Abstract
PURPOSE Based on a case of supernumerary cusp on the bucca of left maxillary second molar diagnosed by cone beam computed tomography (CBCT), its genesis, diagnosis and antidiastole are to be analysed. The clinic implication of CBCT is correspondingly discussed. METHODS The supernumerary cusp was diagnosed by oral general examination, intra-oral radiograph and CBCT. The features of supernumerary cusp, fused tooth, geminated tooth and concrescence tooth, especially differentiate points among them were discussed. RESULTS The case of supernumerary cusp on the bucca of left maxillary second molar was diagnosed definitely by the combined application of oral general examination, periapical radiograph and CBCT. CONCLUSION Supernumerary cusp on the bucca of left maxillary second molar is a rare phenomenon, which is difficult to be differentiated from other tooth deformities. CBCT can improve accuracy of diagnosis.
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Affiliation(s)
- Keyu Jiang
- School of Dentistry, Lanzhou University, No. 199 Donggang Xi Lu, Lanzhou, 730000, Gansu Province, China
| | - Chunxiao Che
- School of Dentistry, Lanzhou University, No. 199 Donggang Xi Lu, Lanzhou, 730000, Gansu Province, China
| | - Zhangfan Ding
- School of Dentistry, Lanzhou University, No. 199 Donggang Xi Lu, Lanzhou, 730000, Gansu Province, China
| | - Sa Zeng
- School of Dentistry, Lanzhou University, No. 199 Donggang Xi Lu, Lanzhou, 730000, Gansu Province, China
| | - Weiping Wang
- School of Dentistry, Lanzhou University, No. 199 Donggang Xi Lu, Lanzhou, 730000, Gansu Province, China
| | - Xiangyi He
- School of Dentistry, Lanzhou University, No. 199 Donggang Xi Lu, Lanzhou, 730000, Gansu Province, China.
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Abstract
AbstractThe aim of the study was to evaluate 10-years of clinical material referring to the rare dental abnormality of double teeth. The study material consisted of case records, operation-books and radiographic or photographic documentation on patients treated in the Department of Oral Surgery, Silesian Medical University, Katowice, from the 1st of June 2000 to the 31st of May 2010. The following features were considered important: age and sex, the reason why the patient reported for treatment, general state of health, the time of recognition and type of double teeth, location of double teeth, complaints and disturbances connected with double teeth, types of radiographs, the radiographic and macroscopic appearance of double teeth and treatment method. Diagnoses were as follows: eight conrescent teeth, two fused teeth, two geminated teeth and one invaginated tooth. The anomaly of a deciduous tooth was referred to in one case only. Double teeth were most often seen in the region of maxillary incisors and molars but rarely in the mandible. The region of incisors was affected chiefly in children and the region of molars in adults. Double incisors are usually recognized prior to treatment whereas double molars as late as during their extraction. In many cases, neither intraoral radiographs nor pantomographs help to confirm double teeth or provide sufficient information to plan the treatment. In such a situation, CT or CBCT should be used in addition to imaging diagnostics. Double teeth among incisors are usually accompanied by occlusal disorders. Therefore the therapeutic management is conducted by a team, including orthodontists.
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Sanghera RK, Jones J. Parotid fistula--an extra-orally draining infected dentigerous cyst associated with a supernumerary fourth molar in ascending ramus. ACTA ACUST UNITED AC 2013; 40:343-5. [PMID: 23829022 DOI: 10.12968/denu.2013.40.4.343] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
UNLABELLED An infected cyst, associated with a supernumerary fourth molar in the ascending ramus of the mandible, presented with parotid swelling, trismus and pain. It was managed as a parotid infection but recurred and a draining pre-auricular sinus developed, which was thought to be a parotid fistula. This was managed by cautery, followed by excision of the fistula, both of which were unsuccessful. Following this, further investigations revealed that the cause of the facial sinus was in fact a cyst associated with a mandibular fourth molar in the posterior ascending ramus. The tooth was extracted, via a pre-auricular extra-oral approach, under general anaesthetic. CLINICAL RELEVANCE This case shows how a dental panoramic radiograph can be extremely helpful at ruling out certain pathology. It also demonstrates how the symptoms of an infection arising from a tooth in the ramus may be misdiagnosed as salivary gland pathology.
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Harris EF, Clark LL. An epidemiological study of hyperdontia in American blacks and whites. Angle Orthod 2008; 78:460-5. [PMID: 18416616 DOI: 10.2319/022807-104.1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2007] [Accepted: 05/01/2007] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To test the null hypothesis that American blacks do not have a higher frequency of extra permanent teeth than whites. MATERIALS AND METHODS Panoramic radiographs of adolescent orthodontic patients, either American whites (n = 1100) or American blacks (n = 600), were reviewed systematically. RESULTS The frequencies of supernumerary incisors, premolars, and molars were each significantly more common in blacks. While incisors are the most common extra teeth in whites (and extra molars are least common), just the opposite ranking occurs in blacks. Overall, the odds ratio was 8.8 (95% confidence limits = 3.9, 20.0), confirming that American blacks are significantly more likely (almost 9 times more likely) to possess extra permanent teeth than American whites. CONCLUSIONS The hypothesis is rejected. Both the frequencies and the patterns of extra permanent teeth are significantly different in blacks and whites, suggesting different frequencies of the relevant (but unidentified) factors governing the developmental mechanisms that result in hyperdontia.
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Affiliation(s)
- Edward F Harris
- Department of Orthodontics, University of Tennessee, Memphis, TN 38163, USA.
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Paripaty S. Dubious diagnosis. Br Dent J 2006; 200:419. [PMID: 16703015 DOI: 10.1038/sj.bdj.4813535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Forde M. Caries before concrescence? Br Dent J 2006; 200:362; author reply 362. [PMID: 16607303 DOI: 10.1038/sj.bdj.4813440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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