The facial profile in advanced hypodontia: A mixed longitudinal study of 141 children

Craniofacial morphology in individuals with increasing severity of hypodontia

“…24,25,[30][31][32] Ogaard and Krogstad 25 concluded that typical dentofacial structure in individuals with a larger number of absent teeth, is due to dental and functional adjustment rather than to an altered growth pattern, but Bondarets and Mc Donald, 24 in Table 2. Significantly reduced value of SNA angle in patients with different number of absent teeth determined in this study, is in compliance with findings of Wisth et al, 27 Roald et al, 35 Sarnäs and Rune 26 and Ogaard and Krogstad, 25 opposite to normal values of this parameter established of Woodworth et al, 23 Nodal et al, 30 Chung et al 31 and Yüksel and Ucem. 36 Published results on the mandibular effects of hypodontia vary.…”

“…Roald et al 35 and Yüksel and Ucem 36 believe that agenesis has a small effect on the dentofacial structure, but Sarnäs and Rune 26 found that morphology and model of growth in children with agenesis are little bit different in regard to children without agenesis. Our findings suggest that there are differences in dentofacial morphology between individuals with tooth agenesis and individuals with complete dentition and normal occlusion, which is consistent with findings of Bondarets and Mc Donald, 24 Ogaard and Krogstad, 25 Wisth et al 27 and Nodal et al…”

“…3,13,[21][22][23] Craniofacial deviations as retrognathic maxilla, reduced lower face height and increased overbite have also been registered in patients with Bajraktarova Miševska, Cvetanka 1 tooth agenesis. [23][24][25][26][27] Deep bite and Class I skeletal relationship was more frequently found in patients with agenesis than in patients without missing teeth. 28,29 The severity of hypodontia is an important factor in craniofacial morphology.…”

“…This finding is corresponding with findings of other authors. [25][26][27]31,32 The ANB angle decreased as number of missing teeth increased, and the patients with more severe hypodontia showed tendencies to a Class III skeletal relationship. 31,32 Increasing numbers of missing teeth resulted also in a decrease in the length of maxilla, what is consistency with the findings of Wisth et al 27 and Woodworth et al 23 According to Roald et al, 35 the absence of permanent tooth buds may have a negative influence on the magnitude of growth in the maxilla, which results in reduced maxillary length.…”

Tooth Agenesis; Aetiological Factors

“…In European populations, it was seen at a level of around 0.25% . [10] The prevalence was found to be 0.08% in a Dutch study , [11]and 0.16% in a Danish study . [6]In Japan, the prevalence was found to be slightly higher, about 1.4% .…”