Hypodontia prevalence and distribution pattern in a group of Qatari orthodontic and pediatric patients: A retrospective study

Abstract

Objectives:The aim of this study was to investigate the prevalence and distribution of hypodontia in the permanent teeth among a group of the Qatari sample and to compare the present results with findings from other populations.Materials and Methods:Records of 1269 Qatari patients (674 females; mean age 11.8 ± 2.3 and 595 males; mean age 11.4 ± 2.2) which included panoramic radiographs were examined to identify hypodontia. All permanent teeth were investigated except third molars.Results:The prevalence of hypodontia was 6.2% (females 8% and males 4.2%; P < 0.05). The majority of patients had one or two missing teeth. There were no significant differences between right and left sides for any particular tooth. The most frequently missing teeth were maxillary lateral incisors (36.2%), followed by mandibular second premolar (32.6%) and maxillary second premolar (20.2%). Hypodontia was more commonly found unilaterally than bilaterally (63.2% and 44.3%; respectively).Conclusions:The prevalence of hypodontia in a group of the Qatari population was within the average value of the majority of published studies in the literature. Hypodontia was significantly more prevalent in females. Although less prevalent, considerable cases of bilateral missing were found in the present study, which necessitates the urgent need for intervention and multi-disciplinary team approach for management.

Replacement of Congenitally Missing Bilateral Maxillary Canines with Dental Implants: A Rare Case Report and Mini Review

“…Hypodontia is more significantly prevalent in the maxilla than in the mandibles, in females than in males, and in unilateral cases than in bilateral cases [15,16]. These findings were recorded in our case except that describing the bilateral impactions of the maxillary canines.…”

The prevalence and distribution of hypodontia in a sample of Qatari patients

“…[ 53 ] Whereas, in Sudanese and Qatari samples, the prevalence was less (5.1% and 6.2%, respectively). [ 41 42 ] On the other hand, higher prevalence values were reported in two German studies (12.6%)[ 54 ] and (11.3%)[ 36 ] and very low prevalence value was noticed in French (1.9%)[ 55 ] and Malaysian studies (2.8%). [ 56 ]…”

“…The above-mentioned factors may justify the difference of the prevalence of hypodontia in Qatari sample (7.8%) in the present study and the previous study among Qatari orthodontic and pediatric patients collected from a different place (6.2%). [ 42 ]…”

“…Hypodontia was more commonly found unilaterally than bilaterally (63.2% and 44.3%, respectively). [ 42 ]…”

Current Approaches for Tooth Agenesis: A Review

“…6,7 In Europe, the United States, Asia and Middle East studies, the most frequently missing teeth were found maxillary lateral incisors and mandibular second premolars. 4,[7][8][9] The most common dental anomalies in Turkish population is said to be hypodontia. 10 In Turkey, studies showed that the frequency of hypodontia were found between %1.77-%21.6, 11,12 the prevalence of oligodontia were found to be between %0.13-%0.3.…”