Distribution Of Supernumerary Teeth Research Articles

Supernumerary teeth in a sample of South African dental patients

Supernumerary teeth (SNT) are often associated with malocclusions. Data on SNT in the South African population are not well documented. To determine the prevalence, distribution of characteristics and any associated complications of SNT in a South African sample of dental patients. The study was retrospective, cross-sectional and descriptive. Method: Orthopantomographs of 12,005 dental patients were reviewed for the presence of SNT. The number, morphology, location, eruption status and orientation of SNT were assessed. Associated orthodontic problems were noted. The prevalence rate was 2.48%. No sexual dimorphism in the distribution of SNT was noted. Types of SNT tabulated were: supplementary, conical, tuberculate and odontoma. Maxilla demonstrated a higher predilection for SNT. Variation in the distribution of SNT in the anterior, premolar and molar regions in each jaw and across jaws was statistically significant. Relationship of eruption status to the morphology and orientation of SNT was of significance. Malocclusions noted were displacement and impaction of adjacent teeth. From an orthodontic perspective, presence of SNT may compromise tooth movement and space closure in patients. Additionally, as majority of SNT in this population were in the maxillary molar and mandibular premolar regions, caution is advised when planning the placement of orthodontic implants in these regions.

Prevalence and Pattern Occurrence of Supernumerary Teeth in the North-East Heilongjiang Population of China

Aims: The objective of the current research was to determine the prevalence of supernumerary teeth and investigate its characteristic and complications in the Chinese population from the North-East Heilongjiang region. Materials and Methods: It was a descriptive and retrospective study which used registered notes and panoramic radiographs of 12,984 patients who visited the Department of Oral and Maxillofacial Surgery in the 2nd Affiliated Hospital of Jiamusi University, China between June 2011 to November 2015. Patients diagnosed with any syndrome or hereditary diseases were excluded from the study. The features of supernumerary teeth were noted and the data were analyzed using SPSS program, (version 20, Inc., Chicago, USA). The Chi-square test was used to determine the differences in the distribution of supernumerary teeth. It was tested at the 5% level of significance. Results: The prevalence was 5.2% and the most prevalent supernumerary teeth was incisor with 3.39% (n = 441). The supernumerary teeth were seen more in maxilla than mandible. The male to female ratio was 2.9:1. Specifically, higher prevalence of supernumerary teeth in male gender was statistically significant (p = 0.03). The supernumerary teeth mostly occurred in children of 5 - 10 years (62.3%), followed by young adolescent between 11 - 16 years (26.5%). Conclusion: The prevalence of supernumerary teeth was widely seen in children and young adolescent of Chinese population. The occurrence was mostly seen in maxilla than mandible and significantly higher in male than female.

The Prevalence and the Characteristics of Supernumerary Teeth of Children and Young Adolescents from North-Western Region of Turkey

Aim: The objective of the following research is to study the prevalence by evaluating a large group of children and young adolescent patients from the north - western region of Turkey and investigate the characteristics of supernumerary teeth. Methodology: This descriptive and retrospective study was performed on 6535 non - syndromic children and adolescent patients (4077 females and 2458 males) ranging in age from 5 to 18 years old. The characteristics of supernumerary teeth were noted and diagnosed during the cli nical and radiographic examination. For each patient we recorded the demographic variables including age and gender. During statistical analysis Chi - squared test was used to determine potential differences in the distribution of supernumerary teeth when st ratified by gender. p value of less than .05 was considered statistically significant. Results: 177 supernumerary teeth were detected in 141 patients (2.2%). 58 patients were females and 83 patients were males with a 1.4:1 male/female ratio (p<.001) among them. In 78.0% (n=110) of patients, one supernumerary tooth was observed. A total of 177 supernumerary teeth were

Prevalence and characteristics of supernumerary teeth: A survey on 7348 people.

Objective:The aim of the present study was to determine the prevalence of supernumerary teeth with by evaluating a large group of adult patients in Turkey and to investigate the characteristics of supernumerary teeth with their complications and treatment options.Study Design:This descriptive and retrospective study was carried out in 7348 adult patients aged over 18 years (3212 females and 4136 males). The characteristics of the supernumerary teeth were noted and the diagnosis was made during clinical and radiographic examination with the help of panaromic, periapical, and occlusal radiography. Information on the demographic variables for each patient, including age and gender, were colleceted.Materials and Methods:All supernumerary teeth were classfied under several titles such as location, position, morphology, eruption, clinical complications, and treatment protocols. The data obtained were subjected to statistical analysis. Chi-squared test was used to determine differences in distribution of supernumerary teeth when stratified by gender. The statistical significance was established by confidence interval of 95% (P ≤ 0.05).Results:123 (2.14%) affected patients (69 females and 54 males) were observed with a female:male ratio of 1.28:1 (P < 0.05). One hundred and fifty-six supernumerary teeth were detected in all affected patients.Conclusion:Supernumerary teeth may be observed in adults patients with a similar frequency (2.14%) as in children and young adolescents, and clinicians should take measures and examine all patients carefully even at older ages.

Prevalence and characteristics of supernumerary teeth in east-northern Turkish population

Objectives: The aim of the present study was to determine the frequency and the distribution of supernumerary teeth (ST) in patients from east-northern Turkey. Materials and Methods: A retrospective study was performed using panoramic radiographs of 1876 patients [673 females (mean age: 13.05±2.79 years) and 1203 males (mean age: 13.63±3.18 years)] ranging in age from 7 to 34 years (mean age: 13.39±3.05 years). Demographic variables including age and sex, the type, number, eruption status of the ST were recorded. In addition, associated pathologies or complications (displacement, eruption failure, resorption of adjacent tooth, and cyst formation) caused by ST were also recorded. The Pearson chi-squared test was used to determine potential differences between genders. Results: ST were detected in 15 patients (0.75 %). The frequency of males and females with ST was 1.16 % and 0.49 %, respectively (P= 0.944). The most commonly observed ST was premolar (33.33%) followed by mesiodens (26.67%), distomolar (20.0%), lateral (13.33%), paramolar (6.67%), respectively. Most of the ST were found to be unilateral, impacted, and in the maxilla. Complications associated with ST were observed in 20.0% of the patients with ST. Conclusions: The frequency of ST in east-northern Turkish general population was found to be 0.75% with no gender difference (p>0.05). The most commonly observed ST was premolar followed by mesiodens.

Non‐syndromic multiple supernumerary teeth: meta‐analysis

Non-syndromic multiple supernumerary teeth (NSMST) is a condition with a very low prevalence and which is opportunely described in the literature by case reports or group of cases. This represents a problem when it comes to describing and discussing the characteristics of this disorder. A search was conducted in PubMed, Web of Knowledge, Science Direct, and Scopus databases to locate and identify cases and series of cases about articles on multiple supernumerary teeth not associated with syndromes that have been reported so far. The following data were recorded: age, gender, total number of supernumerary teeth, number of teeth in both the maxilla and mandible, respectively, and number of teeth in each dental series (incisor, canine-premolar, and molar). Bilaterality in dental series and its localization in either maxilla or mandible were also determined. A total of 46 cases including patients of both genders with a mean age of 19 years (SD = 6.826) and a ratio of 2.14:1 were identified. A total of 393 supernumeraries were reported; 43.26% (n = 170) were located in the maxilla and 56.74% (n = 223) in the mandible. No significant differences were found between genders with respect to the total number, involvement of the dental series, or distribution of supernumerary teeth in each of the arches. Although NSMST is a condition that has a higher incidence in the male gender, no differences have been found as to their number and localization in both genders. Bilaterality seems to be a common characteristic of this disorder.

Prevalência e distribuição de dentes supranumerários numa população pediátrica – Um estudo radiográfico

Aim The purpose of this study was to assess the prevalence and sex, arch and location distribution of hyperdontia through analysis of panoramic radiographs from a Faculty of Dentistry of University of Porto's pediatric population. Methods Panoramic radiographs of 1438 Faculty of Dentistry of University of Porto's patients (714 boys and 724 girls between the ages of 6 and 15 years old) were evaluated to determine the occurrence and distribution of supernumerary teeth. Chi-square and Fisher's Exact Tests were performed. The level of significance was set at 5%. Results The prevalence of hyperdontia was 2,8%. Most of the supernumerary teeth were found in the maxilla (82,5%) and mesiodens was the most detected supernumerary teeth (60%). There were no statistically significant differences between sexes. Conclusions The results are consistent with those previously described in different populations. By early identification of these anomalies, appropriate intervention may be planned, minimizing the complications associated with them.

Prevalence and characteristics of supernumerary teeth in a non-syndrome Turkish population: Associated pathologies and proposed treatment

The objectives of the present study were to investigate the prevalence and characteristics of supernumerary teeth and evaluate the associated pathologies and treatment protocol in a Turkish patient population. A retrospective study was performed using full-mouth periapical and panoramic radiographs of 3491 patients (2146 females and 1345 males) ranging in age from 12 to 25. For each patient with supernumerary teeth we recorded the demographic variables (including age, sex), number, location, position, type, and morphology of supernumerary teeth, associated pathologies or complications, and whether any treatment has been carried out. The Pearson chi-squared test was used to determine potential differences in the distribution of supernumerary teeth when stratified by gender. Supernumerary teeth were detected in 42 subjects (1.2%), of which 27 were males and 15 were females with a 1.8:1 male female ratio (p<0.001). The most commonly found supernumerary teeth were mesiodens (31.3%) followed by premolar (25.0%), lateral (22.9%), distomolar (14.5%), paramolar (4.2%), and canine (2.1%). Of the 48 supernumerary teeth examined, 50.0% (n=24) were conical, 81.3% (n=39) were in a vertical position, and 20.8% (n=10) were erupted. Supernumerary teeth caused rotation or displacement of the adjacent teeth in 14 cases, and the impaction of the permanent teeth in 8 cases. The prevalence of supernumerary teeth in our series was found to be 1.2%, the most frequent type being mesiodens. Rotation or displacement of permanent teeth was the most frequent complication caused by supernumerary teeth.

Characteristics of 283 supernumerary teeth in southern Chinese children

This was a retrospective study to determine the characteristics and distribution of supernumerary teeth in southern Chinese children. The study population consisted of 208 children aged from 2 to 16 years. Males were more frequently affected than females in the ratio 3.1:1. Of the 283 supernumerary teeth, 95.0% were located in the premaxilla, 71.5% were conical, 70.7% were unilateral, 29.3% were bilateral, 47.7% were inverted, and 16.9% were erupted. The mean age at the time of diagnosis and removal of the supernumerary teeth was 7.3 +/- 2.7 years (the minimum age was 2.1 years) and 8.1+/- 2.7 years (the minimum age was 4.1 years), respectively. Seventy percent of the children were in the mixed dentition and 81.3% of the supernumeraries were removed under general anesthesia. In accordance with previous studies, the majority of the supernumerary teeth were located in the premaxillary region, were conical shaped, and remained unerupted.