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dental gemination

Madhuram Krishnamurthy, V Naveen Kumar, Ashok Leburu, Nadeem Jeddy
Fusion and gemination are developmental anomalies which are quite similar to each other but can be distinguished from each other if properly assessed. Fusion and gemination have been described as a result of developmental anomalies of dental tissues. The exact etiology is still unknown, but a genetic predisposition is suggested. This article highlights the importance of clinical and radiographic correlation in arriving at a definitive diagnosis.
January 2018: Journal of Oral and Maxillofacial Pathology: JOMFP
Nebiha Hilal Bilge, Selin Yeşiltepe, Kübra Törenek Ağırman, Fatma Çağlayan, Osman Murat Bilge
BACKGROUND: This study was performed to evaluate the prevalence of all types and subtypes of dental anomalies among 6 to 40 year-old patients by using panoramic radiographs. MATERIALS AND METHODS: This cross-sectional study was conducted by analyzing digital panoramic radiographs of 1200 patients admitted to our clinic in 2014. Dental anomalies were examined under 5 types and 16 subtypes. Dental anomalies were divided into five types: (a) number (including hypodontia, oligodontia and hyperdontia); (b) size (including microdontia and macrodontia); (c) structure (including amelogenesis imperfecta, dentinogenesis imperfecta and dentin dysplasia); (d) position (including transposition, ectopia, displacement, impaction and inversion); (e) shape (including fusion-gemination, dilaceration and taurodontism); RESULTS: The prevalence of dental anomalies diagnosed by panoramic radiographs was 39...
September 21, 2017: Folia Morphologica (Warsz)
G F Ferrazzano, P Festa, T Cantile, V D'Antò, A Ingenito, R Martina
BACKGROUND: A double tooth is a rare developmental anomaly referring to the fusion of two adjacent tooth buds or the gemination of a single bud. CASE REPORT: This case report describes the multidisciplinary approach to an 11-year-old patient with two double upper permanent incisors. The clinical intraoral examination showed a mixed dentition with bilateral double maxillary central incisors, molar Class I malocclusion and palatal ectopy of two lateral upper incisors...
June 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
Santosh Hunasgi, Anila Koneru, Vardendra Manvikar, M Vanishree, Rudraraju Amrutha
Twinning is referred to the development of two separate teeth that arose from the complete separation of one tooth bud. To the best of our knowledge very few cases of twinning in primary or permanent dentition have been previously reported. Here, we report an additional case of twinning involving primary maxillary left lateral incisor and a literature review of clinical and radiographic findings of previous reported cases of gemination and twinning is also discussed. A six-year-old male patient reported to the dental clinic with the complaint of decay in the left front teeth region of the upper jaw...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
José Rubén Herrera-Atoche, María Del Rosario Agüayo-de-Pau, Mauricio Escoffié-Ramírez, Fernando Javier Aguilar-Ayala, Bertha Arelly Carrillo-Ávila, Marina Eduviges Rejón-Peraza
Objective. We quantified the prevalence of impacted maxillary canines (IMC) and their association with other dental anomalies (DAs). Materials and Methods. A retrospective study was done with 860 patients 12 to 39 years of age. The prevalence of IMC was calculated and compared by sex. The sample was divided into a control group and an impaction group, and the prevalence was calculated in both for a series of anomalies: agenesis, supernumerary teeth, shape anomalies of the upper laterals (microdontia, peg and barrel shape, and talon cusp), fusion, gemination, other impacted teeth, transposition, and amelogenesis imperfecta...
2017: International Journal of Dentistry
G Shilpa, Niraj Gokhale, Sreekanth Kumar Mallineni, Sivakumar Nuvvula
OBJECTIVE: The objective of this study was to estimate the prevalence of dental anomalies in primary dentition of Indian population. MATERIALS AND METHODS: This cross-sectional study was conducted on 4180 children in the age of 2-6 years. Anomalies were classified based on Kreiborg criteria. The term "double tooth" was used to avoid misinterpretation between gemination. and fusion. Patients having radiographs were also examined for associated dental anomalies in permanent dentition...
January 2017: Journal of the Indian Society of Pedodontics and Preventive Dentistry
Eshagh Ali Saberi, Sediqe Ebrahimipour
OBJECTIVES: The objective of this study was to evaluate the prevalence of dental developmental anomalies in digital panoramic radiographs of the patients referred to the Zahedan medical imaging center and to evaluate the frequency of anomalies regarding the disorders in shape, position and number in the Southeast of Iran. MATERIALS AND METHODS: A total of 1172 panoramic radiographs from 581 males and 586 females aged over 16 years were obtained from the files of the Zahedan medical imaging center between the years of 2014 and 2015...
July 2016: Journal of International Society of Preventive & Community Dentistry
M Basalamah, K Baroudi
Practitioners and policy-makers need information about the relative frequency of dental anomalies among children in their region. This study investigated the prevalence of different oral anomalies among schoolchildren in Sana'a city, Yemen. A sample of 1000 private and public schoolchildren aged 4-12 years were examined by the same examiner using disposable tongue blades. The total prevalence of oral anomalies was 15.1%, most commonly in boys (male:female ratio 3.2:1) aged 7-12 years. The most prevalent dental anomaly related to hard tissues was tooth hypoplasia (2...
April 19, 2016: Eastern Mediterranean Health Journal, la Revue de Santé de la Méditerranée Orientale
Faezeh Ghaderi, Azade Rafiee
Dental anomaly in number, size and shape might be due to excessive activation of dental lamina during the morpho-differentiation stage. Fusion is one of the most unusual and rare anomalies of shape of the teeth. It frequently involves the supernumerary teeth resulting in a challenging differential diagnosis with gemination. Dental anomalies may result in different problems such as delayed eruption and crowding; thus, early diagnosis is required for effective intervention and proper in-time treatment. The case reported here is a 4-year-old girl with bilateral supernumerary primary maxillary lateral incisors associated with fusion between primary maxillary left lateral incisor and supernumerary lateral tooth...
March 2016: Journal of Dentistry
Vivek Mehta, Anupama Raheja, Rajeev Kumar Singh
Dens in dente is characterised as a developmental anomaly resulting from invagination of the enamel organ into the dental papilla. It is a rare malformation of teeth, showing a wide spectrum of morphological variations such as gemination, microdontia, taurodontism, dentinogenesis imperfecta, supernumerary tooth and hyperplasias, resulting frequently in early pulp necrosis. Maxillary lateral incisors are the commonest teeth to be affected by dental malformations-supernumerary tooth, talon cusp, congenitally missing tooth and dens in dente...
December 11, 2015: BMJ Case Reports
Yoshiyuki Hagiwara, Tamotsu Uehara, Tatsuya Narita, Hirofumi Tsutsumi, Shinya Nakabayashi, Masao Araki
This study investigated the prevalence and distribution of anomalies of permanent dentition in the current Japanese population by examining an unbiased sample. We conducted a survey of dental anomalies by mass dental screening at eight high schools in 2012. Participants were all students with permanent dentition. Dental anomalies were classified as hypodontia, supernumerary teeth, peg-shaped teeth, fused teeth, and talon cusps. Students with one or more dental anomalies on oral examination were given a differential diagnosis by three specialists...
September 2016: Odontology
Alexei Kochetov, N Sreedevi
Affricates have been observed to be problematic in phonological acquisition and disordered speech across languages, due to their relatively complex spatial and temporal articulatory patterns. Remediation of difficulties in the production of affricates requires understanding of how these sounds are typically produced. This study presents the first systematic articulatory and acoustic investigation of voiceless geminate affricate /ʧ/ in Kannada (a Dravidian language), compared to the palatal glide and the voiceless dental stop...
2016: Clinical Linguistics & Phonetics
K S Dwijendra, Vishal Parikh, Soja Sara George, Gururam Tej Kukkunuru, Gali Nagarjuna Chowdary
BACKGROUND: The study is planned to correlate the existence of dental anomalies with different types of malocclusion as the occurrence of anomalies is common in malocclusion. MATERIALS AND METHODS: The present study was conducted among 430 patients with different types of malocclusion as 161 patients having Class I, 203 with Class II, and 66 with Class III malocclusion. The age of the patients ranged from 12 to 15 years. Diagnosis was done on the basis of history, clinical, cephalometric, radiographs, and dental cast examination...
June 2015: Journal of International Oral Health: JIOH
Renjith George Pallivathukal, Alok Misra, Sumanth Kumbargere Nagraj, Preethy Mary Donald
Dens invaginatus (DI) and gemination are two developmental abnormalities that are well reported in the dental literature, but their coexistence in a single tooth is rare. Such situations worsen the risk factors associated with these anomalies, and the treatment plan should be customised as they possess altered morphology and anatomy. A 19-year-old girl came for evaluation of a cracked tooth in the front region of the upper jaw. The tooth showed clinical features of gemination and radiographic features of DI, and was diagnosed as DI in geminated maxillary lateral incisor...
May 22, 2015: BMJ Case Reports
Seema Lochib, K R Indushekar, Bhavna Gupta Saraf, Neha Sheoran, Divesh Sardana
INTRODUCTION: Morphological variations in primary dentition are of great concern to a pediatric dentist as it may pose clinical problems like dental caries, delayed exfoliation and also anomalies in the permanent dentition, such as impaction of successors, supernumerary teeth, permanent double teeth or aplasia of teeth. The present study was conducted to investigate the presence of dental anomalies in the primary dentition of 1000 schoolchildren in the 3-5 year-old age group in Faridabad...
June 2015: Journal of Epidemiology and Global Health
Faiez N Hattab
Human tooth development is a continuous process begin at the sixth weeks in utero and extends to about sixth months after birth for the primary dentition and from sixteenth week in utero to late adolescence for permanent dentition. There is no other organ of the human body which takes so long to attain its ultimate morphology as dentition. Several physiologic growth processes participate in the progressive development of the teeth including: initiation, proliferation, histodifferentiation, morphodifferentiation, apposition, calcification, and eruption...
October 2014: Journal of Clinical and Experimental Dentistry
Ellen Ghijselings, Jan van Gastel, An Verdonck, Carine Carels
BACKGROUND: Fusion is defined as the union between dentine and/or enamel of two normally separated teeth. Gemination is the cleavage of the forming dental germ to produce two partial teeth. The distinction between the conditions is often determined by the number of teeth present. However, this can be confused if supernumerary teeth are considered. AIM: The present case report describes the treatment of a patient who presented with dental fusion and macrodontia involving both upper central incisors...
November 2014: Australian Orthodontic Journal
Lodd Mahendra, Sujatha Govindarajan, Muruganandhan Jayanandan, Shaik Mohammed Shamsudeen, Nalin Kumar, Ramasamy Madasamy
Developmental anomalies in the hard tissue are seen frequently in dental practice. Gemination and fusion are the most commonly encountered anomalies, and distinction between the two is always challenging. Gemination, also called double tooth, is an anomaly exhibiting two joined crowns and usually a single root. It represents an incomplete attempt of a single tooth germ to split. It is considered multifactorial in etiology, with genetic and environmental causes. This paper discusses a rare example of bilateral gemination (prevalence 0...
2014: Case Reports in Dentistry
Nelly Steinbock, Ronald Wigler, Arieh Y Kaufman, Shaul Lin, Imad Abu-El Naaj, Dror Aizenbud
INTRODUCTION: Macrodontia of anterior teeth may occur as an isolated condition or as a result of fusion or gemination and may cause clinical problems such as tooth crowding and esthetic problems. Preliminary planning and careful management are often required by a dental team comprising an orthodontist, an endodontist, a prosthodontist, and an oral surgeon. A multidisciplinary treatment approach in a case with fused teeth is presented. METHODS: A 9-year-old girl presented with macrodontia of a left maxillary central incisor...
July 2014: Journal of Endodontics
Elif Tarım Ertaş, Meral Yırcalı Atıcı, Hakan Arslan, Bilal Yaşa, Hüseyin Ertaş
Gemination with talon cusps is an uncommon morphologic dental anomaly, characterized by the formation of clinically wide tooth that can cause significant aesthetic and clinical problems including esthetic impairment, pain, caries susceptibility, and tooth crowding. These morphological dental anomalies have specific treatment needs due to the abnormal morphology and need virtuous radiologic diagnosis. Multidisciplinary approach can supply success of the treatment plan that can provide esthetic and occlusal requirements...
2014: Case Reports in Dentistry
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