Prevalence Of Supernumerary Teeth Research Articles

Prevalence of tooth agenesis and supernumerary teeth related to different Thai cleft lip and cleft palate populations

BackgroundPattern of dental anomalies encountered in cleft patients shows subtle signs of genetic involvement. This study aimed to evaluate the prevalence and pattern of tooth agenesis and supernumerary teeth in Thai cleft population according to the cleft type.MethodsData collected from patients with cleft lip and palate, who had been treated at Tawanchai Cleft Center, Khon Kaen University, Thailand, available during year 2012–2022, were investigated. Records from 194 patients with non-syndromic clefts met the inclusion criteria. Standard dental records, and at least either orthopantomogram (OPG) or cone beam computed tomography (CBCT), were examined. Statistical analysis was performed using chi-square and binominal test (p ≤ 0.05).ResultsPrevalence of tooth agenesis was higher (77.3%) than that of supernumerary teeth (5.7%) and was more common in bilateral cleft lip and palate (BCLP) (88.1%) than in unilateral cleft lip and palate (UCLP) (72.6%) (p = 0.017). The upper lateral incisor was more frequently affected (46.4%), followed by the upper second premolar. The number of missing teeth observed on the left side was significantly higher. Patients with left UCLP (ULCLP) had the highest prevalence of tooth agenesis. A total of 41 tooth agenesis code (TAC) patterns was found. The prevalence of supernumerary teeth was comparable with 6.6% of ULCLP, 5.1% of BCLP, and 4.5% of URCLP. Tooth-number anomalies were observed more often in the BCLP and were most likely to occur on the left side of the maxilla. Both types of anomalies could be featured in a small proportion of cleft patients.ConclusionsMore than half of the patients with non-syndromic cleft lip and palate in this study, presented with tooth-number anomalies. Tooth agenesis was approximately 10-time more prevalent than supernumerary teeth. Tooth agenesis was likely to appear on the left-side of the maxilla regardless of the laterality of the cleft.

Five parapremolars in a non-syndromic patient: A case report

Supernumerary teeth or hyperdontia are additional or an excessive number of teeth present in normal deciduous or permanent dentition. The prevalence of supernumerary teeth is between 0.1 and 3.8% in permanent dentition and between 0.3 and 0.8% in deciduous dentition. In Sabah, the prevalence of supernumerary teeth is 10.32% among orthodontic patients. The condition is more common in male patients. A case report involved a fit and healthy 19-year-old male student who presented with multiple supernumeraries. Upon clinical examination, there were three erupted supernumeraries on the bilateral mandibular premolar region, and additional two impacted supernumeraries being discovered after further radiographic investigation. This anomaly was found during an annual dental school checkup program. The patient had congenital absence of the lower left third molar. Primary dental care was carried out such as filling for carious teeth, scaling, oral hygiene reinforcement and regular monitoring. The patient declined any other dental treatment options such as extraction of the non-functioning supernumerary parapremolar teeth, or orthodontic treatment to improve his malocclusion. Currently, the patient is under oral hygiene maintenance with regular dental follow-ups. In a nutshell, the importance of regular dental follow-ups and review is crucial to monitor any signs and symptoms of pathology such as cystic formation of unerupted supernumeraries. Reinforcement of oral hygiene and caries risk assessment should be carried out during reviews to improve and maintain the patient’s quality of life.

Dental and jawbone abnormalities linked to amelogenesis imperfecta: A retrospective and analytic study comparing panoramic radiographs.

Amelogenesis Imperfecta (AI) is a disorder of tooth development characterized by abnormal enamel formation. In order to detect other dental and jawbone abnormalities that could be associated with AI, a retrospective and analytic study was conducted comparing panoramic radiographs of AI and non-AI patients. Digital panoramic radiographs of 60 AI and 60 non-AI patients were examined. Abnormalities in dental number, size, shape, eruption, and in the shape of the dental arches were checked and blindly recorded by two experimented observers. Descriptive statistics using percentages and chi-square test with .05 level of significance value was used. Prevalence of supernumerary teeth, dental agenesis, microdontia, taurodontism, radicular dilacerations, dental inclusions, temporary teeth persistence, and pulp calcifications was significantly higher in AI patients compared to control patients. Prevalence of periapical images, cysts, and hypercementosis was lower in AI patients compared to control patients, with no statistically significant difference. A significant prevalence of mandibular hypoplasia was also noted in AI patients. In addition to enamel defect, panoramic radiography was useful in detecting other dental abnormalities and mandibular hypoplasia associated with AI and should therefore be systematically indicated for AI patients' care.

Prevalence of permanent numeric dental anomalies in panoramic radiography in an Iranian population

Aim: Dental number anomalies are a group of congenital developmental disorders divided into two groups supernumerary and missing teeth. This study was conducted to investigate the prevalence of numeric dental anomalies using panoramic images in patients referred to the Hamadan Dental Faculty. Methods: In this cross-sectional study, 2,197 panoramic radiographs of patients aged 6-49 years were evaluated. These anomalies are divided into two groups: 1) Supernumerary teeth, including Mesiodens, Distodens, and Peridens, and 2) Missing teeth, including Hypodontia, Oligodontia, and Anodontia. A Chi-square test was performed to assess the relationship between the anomalies. Data analysis was performed using SPSS 16, in which P-value < 0.05 was considered the statistical significance level. Results: Of 736 males (32.2%) and 1548 females (67.8%) in this study, 32 (4.3%) and 55 cases (3.8%) had supernumerary teeth, respectively. The prevalence of supernumerary teeth was 0.3%, 0.5%, and 0.6% in males and 0.2%, 1% and 1.2% in females for mesiodens, distodens, and peridens, respectively. Also, 243 males (10.6%) and 655 females (28.6%) had missing teeth anomalies. Hypodontia in the maxilla was the most common anomaly in both genders, while mesiodens was the least common. Conclusion: Hypodontia was the most common anomaly, followed by peridens; the least common anomaly was mesiodens. The prevalence of supernumerary teeth was greater in males, though the difference was not statistically significant. In comparison, females had a greater prevalence of missing teeth.

Prevalence of Supernumerary Teeth In Maxillary and Mandibular Anterior Region in A Group of Egyptian Children: A Retrospective Study

Prevalence of Supernumerary Teeth In Maxillary and Mandibular Anterior Region in A Group of Egyptian Children: A Retrospective Study

Prevalence of Supernumerary Teeth and Its Associated Complications among School-going Children between the Ages of 6 and 15 Years of Jamshedpur, Jharkhand, India.

Supernumerary teeth (ST) are those that exceed the normal dental formula. This phenomenon is also known as hyperdontia, and can occur in solitary or multiple forms, might be unilateral or bilateral, and affect one or both jaws. To study the prevalence, gender variations in terms of frequency, characteristic, distribution, and associated complications with the presence of ST in 3,000 school-going children of age 6-15 years in Jamshedpur, Jharkhand, India. The study consisted of an examination of randomly selected 3,000 children, female (group I) and male (group II), between the age-group of 6 and 15 years, from both private and government-aided schools. Clinical examinations were carried out by a single investigator under natural daylight in a systematic manner using a mouth mirror and straight probe only. The demographic profiles and number of teeth, including the presence of any ST (site, region, eruption status, morphology, and whether it was present unilaterally or bilaterally), were ascertained. Malocclusion or any complications associated with ST were also noted. ST prevalence was found to be 1.87%, with male to female ratio of 2.29:1. Out of 56 children with ST, eight children had double ST while 48 had single, 53 ST were present in maxilla, and only three in mandible. Based on the region, 51 ST were present in the midline, four in the central incisor region, and one in the molar region. According to morphology, 38 ST were conical, 11 ST were tuberculate, and seven ST were supplementary. Twenty-two ST had associated complications, while 34 ST were asymptomatic. ST prevalence is relatively less, but if left neglected, it can pose serious associated dental problems in the child. Singh AK, Soni S, Jaiswal D, et al. Prevalence of Supernumerary Teeth and Its Associated Complications among School-going Children between the Ages of 6 and 15 Years of Jamshedpur, Jharkhand, India. Int J Clin Pediatr Dent 2022;15(5):504-508.

Prevalence and Characteristics of Supernumerary Teeth in Pediatric Patients: A Retrospective Study

Abstract Background: Supernumerary teeth are a dental anomaly that can impact oral health, yet their prevalence and characteristics in pediatric populations remain underexplored. This retrospective study aimed to investigate the occurrence and attributes of supernumerary teeth in children aged 4–14 years. Methods: Medical records including panoramic radiographs of 3127 pediatric patients were reviewed. Data included patient demographics and supernumerary tooth characteristics (number, location, eruption status, morphology, primary/permanent, sagittal position, and orientation) and were subjected to statistical analysis using Fisher’s exact and Chi-square tests (P < 0.05). Results: Among the 3127 patients, 87 (2.8%) showed supernumerary teeth, with a male predominance (56.3%). Supernumeraries were most common in the mixed dentition (58.6%), followed by permanent dentition (26.5%) and primary dentition (14.9%). The majority had a single supernumerary tooth (83.9%), resulting in a total of 101 supernumeraries. Conical supernumeraries were the most common (65.3%), followed by tuberculate (20.8%) and supplemental (13.9%) types. Palatal placement was predominant (78.2%), whereas 18.8% were on the alveolar arch, and 3% were labial. Most were normally oriented (78.2%), with 13.9% inverted and 7.9% angular. Eruption status indicated that 63.4% were erupted, whereas the rest were impacted. Conclusion: This retrospective study revealed a 2.8% prevalence of supernumerary teeth among pediatric patients, with a male predominance.

Supernumerary Teeth Management in the Anterior Maxilla: A Report of Two Cases

Introduction: Supernumerary teeth are additional teeth besides the normal series causing interference to the developing permanent incisors and resulting in poor dental and facial esthetics. Many complications can be associated with these supernumerary teeth such as impaction, delayed eruption or ectopic eruption of adjacent teeth, crowding or the development of median diastema. Aim: The aim of this work is to present two cases of Supernumerary teeth treated in the dental department of Farhat Hached teaching Hospital in Sousse. Résultats et discussion: Two male patients aged 12 and 8 respectively were referred to the dental departement of Farhat Hached Hospital due to swelling in their maxilla and delayed eruption of central incisors. The intra-oral examination showed the absence of the left central incisor for the first patient and an ectopic erupted one in the second patient. Upon radiological examination, impacted supernumerary teeth with partial root development were found. Both supernumerary teeth in both patients impeded the eruption of their central incisors and were surgically removed. The prevalence of supernumerary teeth in Caucasians has been reported to be between 1% and 3% which is slightly higher than the Asian populations. Single tooth hyperdontia was found in approximately 76% to 86% of the cases. Although supernumerary teeth could erupt normally, they may remain impacted. The most common complication of supernumerary teeth is maxillary incisors eruption failure. Early diagnosis and treatment of patients with supernumerary teeth may prevent or minimize complications. The treatment options depend on the supernumerary teeth type and position. Orthodontic treatment is often necessary to achieve optimum occlusal and aesthetic results. The disadvantage of the combined surgical/orthodontic therapy is that it requires a longer treatment period and some complication including ankylosis, non-vital pulps and root resorptions.

Epidemiology of Supernumerary Teeth in 5000 Radiography Films: Investigation of Patients Referring to the Clinics of Ardabil in 2015-2020.

Background Supernumerary tooth is defined as any extra tooth or odontogenic structure that is formed on normal dentition. Supernumerary teeth cause such problems as deficiency in tooth growth, ectopic growth, displacement, crowding, diastema, odontogenic cyst formation, decay of the adjacent tooth, malocclusion, and esthetic problems. This study was conducted aiming at determining epidemiology of supernumerary teeth in Ardabil city in 2020. Materials & Methods. In this retrospective descriptive analytical study, 5000 panoramic radiographs of patients referring to Rad and Baser Oral and Maxillofacial Radiology Centers were selected through multistage sampling method during 2015–2020. The data were collected by checklist and analyzed with using SPSS-21 and chi-squared, Fisher, and one-way ANOVA tests with a significance level less than 5%. Results The prevalence of supernumerary teeth was estimated as 1.06% (n = 53), and no significant difference between the males and females was seen. Most supernumerary teeth were found in the distomolar (44.1%) and parapremolar (29.4%) locations. The majority of supernumerary teeth were present in the maxilla (73.5%) and were impacted (77.9%) and unilateral (71.7%). The number of supernumerary teeth was 68 cases and majority of patients (86.8%) had one supernumerary tooth. Conclusion Supernumerary tooth in this study had a high prevalence compared to similar studies, and unlike most previous studies, the most common type of supernumerary tooth was distomolar. Early diagnosis and proper medical planning are essential for managing supernumerary teeth.

Prevalence of dental number anomalies among A group of Turkish children

Background/Aim: The study aimed to evaluate the prevalence and distribution of congenital dental number anomalies in the permanent dentition among a group of Turkish children in the Inner Aegean Region of Turkey. Material and Methods: A total of 5377 patients aged 7-9 who visited our clinic for the first time between September 2018 and September 2019 were investigated. The children were examined for tooth agenesis and supernumerary teeth using panoramic radiographs taken for various reasons and clinical records reviewed. Dental number anomalies were evaluated according to gender and localization. Descriptive and comparative statistical analyses were performed using the SPSS package software program Version 23. Results: For the study, the data of 1987 patients (947 female, 1040 male) were examined. The tooth agenesis was found in 109 patients (5.5%), the supernumerary teeth were found in 24 patients (1.2%). The prevalence of tooth agenesis was 5% in males, 6% in females. There was no statistical difference between genders (p>0.05). The distribution of tooth agenesis according to jaws and sides by gender was not statistically different (p>0.05). The most commonly missing teeth were mandibular left second premolar (37.6% of patients) and mandibular right second premolar (33% of patients). According to types of teeth and gender, molar tooth agenesis was seen more common in females than males (p<0.05), there was no significant difference in other types of teeth by gender. The prevalence of supernumerary teeth were 1.9% in males, 0.4% in females and the difference between genders was found to be statistically significant (p<0.05). All the supernumerary teeth were located in the anterior maxilla, and half of them were mesiodens. Conclusions: Early diagnosis and appropriate treatment choice are very important managing complications associated with congenital dental number anomalies and for differential diagnosis of characteristic syndromes.

Non-Syndrome Case of Multiple Erupted Supernumerary Teeth and Wisdom Tooth Anodontia

Supernumerary teeth can be detected during a routine clinical or radiographic examination. They are defined as any tooth or tooth substances that are excess of the usual configuration of twenty deciduous and thirty-two permanent teeth (1). Supernumerary teeth can cause several complications. It depends on the location or stage of their formation, such as: preventing or delaying the eruption of associated permanent teeth, crowding or malocclusion The main aim of orthodontic treatment of supernumerary teeth is to restore adequate dental aesthetics and functions. After the clinical, radiographic and tomographic diagnosis, the orthodontic treatment of supernumerary teeth will depend on several factors. Such as; the location, proximity to vital anatomical structures, space availability in the arch, shape and the amount of supporting periodontal tissue. Reports in Western Region in Saudi Arabia showed that the range of the prevalence of supernumerary teeth was 0.1–3.8% of the population. The current finding, however, was 0.3%, a finding that is not in concert with what was reported by Fardi et al. in which the prevalence of supernumerary teeth was 1.8%.This case reported a unilateral four premolars erupted to occlusion in the right mandibular arch for non-syndrome patient.

Prevalence of oral anomalies in schoolchildren between the age group of 5 and 14 years of vadodara district

Introduction: Anomalies of the oral and dental structures can be isolated or represent a manifestation of a general disorder or a syndrome. Oral anomalies may lead to functional and aesthetic disorders, and their recognition contributes to early diagnosis and treatment planning. Hence, their recognition is of great significance for a timely and accurate diagnosis. Hence, the present study aimed to know the prevalence of oral anomalies in school-going children. Aim: The aim of this study was to know the prevalence of oral anomalies in schoolchildren between the age group of 5 and 14 years located in Vadodara city. Methodology: The study was comprised of 7533 schoolchildren (male – 4211 and female – 3322) aged between 5 years and 14 years. All of the study participants underwent an oral screening examination for oral health and developmental anomalies. Results: Out of 7533 children, 65 (42 – male and 22 – female) had oral anomalies, with a prevalence of 0.86%. The prevalence of supernumerary teeth and fusion was 0.37% and 0.07%, respectively. Ankyloglossia showed an equal frequency in both sexes, with a prevalence value of 0.02%. The prevalence value of 0.10% and 0.06% was noted in talon's cusp and cleft lip and palate, respectively. With 0.03% prevalence, microdontia showed an equal sex predilection. With a prevalence value of 0.01%, the least common anomalies found here were geographic tongue, microdontia and temporomandibular joint ankylosis. Conclusion: Oral anomalies occur with different frequencies in many countries of the world amongst different ethnic or regional groups. Early identification of these anomalies is noteworthy in planning comprehensive management of the young child.

Prevalence of supernumerary teeth in permanent dentition

Prevalence of supernumerary teeth in permanent dentition

Clinical and Epidemiological Study of Supernumerary Teeth in Patients from Plovdiv Region

Abstract Abnormalities in the number of teeth are conditions that occur predominantly in childhood. Therefore, monitoring the prevalence and early diagnosis is very important for the timely and appropriate therapeutic approach. The aim of the study was to investigate the incidence of supernumerary teeth in patients from the city of Plovdiv. Methods and equipment: 1,000 dental patients were studied. Data were collected from patients seeking medical attention at the Faculty of Dental Medicine in Plovdiv. We used clinical, X-ray and statistical methods for investigation. Results: A 1.1% prevalence of supernumerary teeth (ST) was observed in the studied patients. A statistically significant difference was found between the presence of ST in the permanent and mixed dentition, with a 3% relative proportion of ST in the mixed and 0.62% in the permanent dentition (p < 0.05). The relative proportion of ST in the maxilla was 90.9%, and in the mandible – 9.1%. A statistically significant difference (p < 0.05) was found in the distribution of ST by jaws. In our study, a higher frequency of mesiodens and distomolar (1.08% and 0.22%, respectively) was found in males, and a decreasing relative proportion from the midline to distally in females (mesiodens – 0.56%, paramolar – 0.19%, distomolar – 0.19%). Conclusion: Supernumerary teeth are a relatively rare dental abnormality in the Bulgarian population. Its distribution by sex and morphology corresponds to the prevalence in Caucasians and populations of southern countries.

Prevalence of supernumerary teeth among a sample of patients attending college of dentistry in Erbil, Iraq (A Retrospective study)

Background and Objectives: A supernumerary tooth is an additional tooth to the normal series and can be located in almost any region of the dental arch. The objective of the study was to investigate the prevalence of supernumerary teeth and the distribution of the cases according to the demographic data and characteristics among patients attending a College of Dentistry in Erbil, Iraq. Methods: This descriptive and retrospective study was performed on 1233 patients (658 males 53.4% and 575 females 46.6%) ranging in age from 3 to 14 years old during the period 20172018. The characteristics of supernumerary teeth were noted and diagnosed during the clinical and radiographic examination. The demographic variables including age and gender was recorded for each patient. During statistical analysis Fisher’s exact test was used. p value of less than .05 was considered statistically significant. Results: Only eight supernumerary teeth were detected in 1233 patients (0.6 %). 7 patients were males and 1 patient was female with a 1.14:1 male/female ratio (p =0.089). Among supernumeraries: most of them 5 teeth (62.5%) were found in the maxillary anterior, and 7 teeth (87.5%) were conical in morphology. All the supernumerary teeth occurred as single tooth within the oral cavity. Regarding eruption status within the arch, all supernumerary teeth (100%) had erupted. All supernumerary teeth (100%) were extracted. Conclusion: The identification of this anomaly provides a clue towards the possibility of any complication, pathologies, other related dental anomalies, syndromes and familial association in Erbil, Iraq.

Supernumerary Teeth: A Retrospective Cross-Sectional Study from Palestine

Objective: To investigate the prevalence and characteristics of supernumerary teeth among patients attending the students' dental clinics at the Faculty of Dentistry of the Arab American University, Jenin, Palestine. Material and Methods: This is a descriptive, cross-sectional, retrospective study of 1970 digital panoramic radiographs of patients, age ranging between 12 and 50 years. The radiographs and dental records were reviewed for supernumerary teeth. For each patient with supernumerary teeth, were recorded the demographic variables, number, location, eruption status, type, and morphology, the developmental stages. Descriptive statistics were performed and results were tabulated. Results: Supernumerary teeth were detected in 17 subjects (0.86%), of which 13 were males and 4 were females with a male to female ratio of 3.25:1. Of the 17 patients, 64.7% had one supernumerary tooth while the others had two. The majority (78.3%) of the supernumeraries were located in the maxilla. Around 56.5% of the supernumeraries found in this study were located in the premaxilla. Half of the supernumeraries (52.2%) were erupted, and 47.8% were impacted. Mesiodens was the most frequently seen supernumerary teeth followed by distomolars and premolars. Most of the supernumeraries were fully developed, while 21.7% displayed only crown formation. Conclusion: The prevalence of supernumerary teeth in the study sample was found to be 0.86% and the most frequent type was mesiodens. Supplemental morphology was found to be the most common form of supernumerary teeth.

Third Dentition Is the Main Cause of Premolar Supernumerary Tooth Formation

While the prevalence of supernumerary teeth (ST) is high in permanent dentition, the etiology of ST in humans remains unclear. However, multiple murine models of ST have elaborated on dated mechanisms traditionally ascribed to ST etiology: one involves the rescue of rudimental teeth, and the second considers the contribution of odontogenic epithelial stem cells. It remains unclear whether these mechanisms of ST formation in mice are applicable to humans. The third dentition is usually regressed apoptotic—that is, the teeth do not completely form in humans. Recently, it was suggested that ST result from the rescue of regression of the third dentition in humans. The present investigation evaluates the proportion of collected general ST cases that evinced a third dentition based on the clinical definition of ST derived from the third dentition. We also investigated the contribution of SOX2-positive odontogenic epithelial stem cells to ST formation in humans. We collected 215 general ST cases from 15,008 patients. We confirmed that the general characteristics of the collected ST cases were similar to the results from previous reports. Of the 215 cases, we narrowed our analysis to the 78 patients who had received a computed tomography scan. The frequency of ST considered to have been derived from the third dentition was 26 out of 78 cases. Evidence of a third dentition was especially apparent in the premolar region, was more common in men, and was more likely among patients with ≥3 ST. SOX2-positive odontogenic epithelial stem cells within the surrounding epithelial cells of developing ST were observed in non–third dentition cases and not in third dentition cases. In conclusion, the third dentition is the main cause of ST in humans. The odontogenic epithelial stem cells may contribute to ST formation in cases not caused by a third dentition.

Fourth molar: A retrospective study and literature review of a rare clinical entity.

PurposeThe prevalence of supernumerary teeth has been reported to be between 0.1% and 3.8%. The aim of this study was to determine the prevalence, clinical significance, and associated pathologies of fourth molars based on a retrospective study and a literature review.Materials and MethodsA 5-year retrospective prevalence study was conducted at the Department of Oral Diagnosis and Dentomaxillofacial Radiology of Okayama University Hospital, Okayama, Japan. The study involved extracting data from the digital records of patients from January 1, 2013 through December 31, 2017. The sampling frame included all patients who had panoramic radiographs, cone-beam computed tomography (CT), and multislice CT images during the period under review.ResultsA total of 26,721 cases were reviewed and 87 fourth molars were identified. The prevalence of fourth molars in the 5-year study at Okayama was calculated as 0.32%. The mean age of patients with a fourth molar was 30.43 years, and the male-to-female ratio was 1:0.98. The vast majority of cases were in the maxilla (92%) and had normal shapes (89.7%); furthermore, 82.8% of cases were unerupted.ConclusionThe prevalence of fourth molars in the study population was found to be 0.32%, and fourth molars occurred with approximately equal frequency in males and females. Fourth molars were more common in the maxilla and were predominantly unerupted and small.

A Review of Supernumerary Teeth in the Premolar Region.

Supernumerary teeth in the premolar region, unlike other supernumeraries, occur more often in the mandible where they are generally of the supplemental type. Occasionally, they are conical or smaller than normal, particularly in the upper premolar regions. They might occur singly or in multiples, be erupted or impacted, but the majority have been found to be unerupted and asymptomatic. The prevalence of supernumerary teeth in the premolar region has been demonstrated to be between 0.01 and 1 percent depending on the population studied. Interestingly, populations from the East or Africa are known to be the most affected. Various theories have been suggested to explain the etiology of supernumerary teeth in general including both genetic and environmental factors. Furthermore, it has been suggested that supernumerary premolar teeth belong to a third (postpermanent) series, developing from extensions of the dental lamina. Several consequences can result from the presence of supernumerary premolars, especially in the mandible, such as cyst formation, transposition, and other clinical scenarios.

A study on prevalence, complications, and possible etiologic factors of supernumerary teeth in 6–12-year-old Schoolchildren of Rohtak, India

Background: A study on prevalence, complications, and possible etiological factors of supernumerary teeth in 6–12-year-old schoolchildren of Rohtak, India. Aim: This study aimed to study the prevalence of supernumerary teeth in Rohtak district, Haryana, India and elucidate the possible etiological factors for their origin and the type of malocclusion caused by their presence. Materials and Methods: Two thousand and sixty school-going nonsyndromic children of 6–12-year age were examined for the presence of supernumerary teeth and referred to the Department of Pedodontics and Preventive Dentistry. Detailed history, clinical and radiographic examinations were done. Chi-squared test was used for statistical analysis. Results: Ninety-four supernumerary teeth were found in 81 children. All supernumerary teeth were found in maxilla. Most of these teeth were erupted, conical, and in the midline. Labial displacement of adjacent teeth was most commonly seen. Birth order of these children was mostly 2nd or 3rd, and majority of them belonged to the Jat community and were born at home by normal delivery. Conclusions: The present study emphasizes the necessity for early detection and appropriate management of supernumerary teeth. We suggest the development of further approaches including family studies to estimate the importance of genetic and possible environmental factors to attain a more precise knowledge of the etiology of hyperdontia.