Frequency of hypodontia in relation to tooth size and dental arch width

Wisth, Per Johan; Thunold, K; Bøe, Olav Egil

doi:10.3109/00016357409002548

Cited by 92 publications

(103 citation statements)

References 7 publications

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“…In some individuals, there may be delayed development of premolars; hence, no one can be absolutely certain that these teeth are missing below the age of about nine years, especially among males (7). Wisth et al (12) proved that the prevalence of missing teeth is higher when examined at the age of seven years compared with nine years of age. At seven, 7.1 percent of the children had missing teeth, while two years later, only 6.6 percent of the same sample was diagnosed with hypodontia.…”

Section: Discussionmentioning

confidence: 99%

“…The wide range of frequency rates of hypodontia can be attributed to differences in the methods of sampling and examination and the distribution of age, sex, and racial origin of the subjects. Many studies have demonstrated that there was no consistent finding as to which jaw has more missing teeth (4,7,9,12,(17)(18)(19). However, Chung et al (8) found that hypodontia was significantly more in the mandible.…”

Section: Discussionmentioning

confidence: 99%

“…In agreement with the data reported in the Korean population, our results showed no statistically significant difference in hypodontia patients in the vertical relationship of the jaws. Some studies found few differences in dental arch dimensions between patients with tooth agenesis and controls (12,26). Nevertheless, Bu et al (27) suggested that oligodontia patients have greater reductions in their dental arch dimensions than those with hypodontia.…”

Section: Discussionmentioning

confidence: 99%

“…Subjects with crossbites or impacted or extracted canines and/or first molar teeth were excluded from the hypodontia group. Intercanine (cups tip to cusp tip) and intermolar widths (mesiobuccal cusp tip to mesiobuccal cusp tip) were measured from the dental casts of 145 subjects as the hypodontia group and 60 subjects as the control group to compare the dental arch widths (12).…”

Section: Methodsmentioning

confidence: 99%

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Frequency and characteristics of tooth agenesis among an orthodontic patient population

Çelikoğlu

Kazanci²,

Miloğlu³

et al. 2010

Med Oral

109

112

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Purpose: The objectives of this study were to investigate the prevalence and characteristics of tooth agenesis and the associated skeletal morphology and arch widths in a group of Turkish patients seeking orthodontic treatment. Material and Methods: We designed a retrospective study composed of pre-and post-treatment panoramic radiographs and lateral cephalometric films of 3,341 patients (2,040 females and 1,301 males). Tooth agenesis was evaluated for hypodontia and oligodontia -excluding the third molars-from the orthopantomograms. The significance test for the differences in the skeletal morphology between hypodontia and non-hypodontia patients was performed using the Pearson chi-square and Student t-test. Results: The prevalence of tooth agenesis was 4.6 percent for the Turkish orthodontic patient population. Tooth agenesis was found more frequently in females than in males, although this difference was not statistically significant (p>0.05). The most commonly missing teeth were the maxillary lateral incisors, followed by the mandibular second premolars and mandibular central incisors. Intercanine and intermolar widths in the maxillary and mandibular arches were significantly reduced in the hypodontia group compared with the control group (p<0.01). Tooth agenesis was statistically and significantly less in patients with skeletal Class II (p<0.01). There was no statistically significant difference in hypodontia patients in the vertical relationship of the jaws (p>0.05). Conclusions: The prevalence of tooth agenesis was found to be 4.6 percent for the Turkish orthodontic patient population (hypodontia 4.3% and oligodontia 0.3%), and was found more frequently in females. Intercanine and intermolar widths were significantly reduced in the hypodontia group for both jaws compared with the control group.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Frequency and characteristics of tooth agenesis among an orthodontic patient population

Çelikoğlu

Kazanci²,

Miloğlu³

et al. 2010

Med Oral

109

112

View full text Add to dashboard Cite

show abstract

“…4,12 The congenital absence of teeth occurs more frequently in girls at a ratio of 3:2. 2,13,14 The mandibular second premolar and maxillary lateral incisor are the most commonly missing teeth. [13][14][15][16][17][18][19][20] Tooth agenesis has a negative influence on the craniofacial morphology and leads to aesthetic and functional disturbances.…”

Section: Introductionmentioning

confidence: 99%