Malocclusion in the modern Alaskan Eskimo

Wood, Barry F.

doi:10.1016/0002-9416(71)90147-3

Cited by 30 publications

(12 citation statements)

References 2 publications

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“…A similar lack of sex difference was also reported in Iranian[12] and Danish[13] children. Class I malocclusion was, however, found to be significantly more prevalent in British,[14] Egyptian[11] and Eskimo[15] females, compared to their male counterparts.…”

Section: Discussionmentioning

confidence: 99%

“…Class II malocclusion is noted to be more prevalent in white populations of northern European descent,[13] and less prevalent in isolated societies such as Eskimos[15] and American Indians. [16] The occurrence of Class II malocclusion in the present study (25.4%; 21.9% Class II division 1 and 3.5% Class II division 2) was greater than in Gardner's[6] group (18%; 16% Class II division 1 and 2% Class II division 2) and both groups had greater prevalence of Class II cases than Ommar's[5] sample (Class II 2.9%; 2% Class II division 1 and 0.9% Class II division 2).…”

Section: Discussionmentioning

confidence: 99%

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The prevalence of malocclusion in urban Libyan schoolchildren

Bugaighis

Karanth

2013

J Orthodont Sci

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Objective:This study aimed to explore the prevalence of malocclusion and its distribution among 12-17 year old Urban Libyan schoolchildren.Materials and Methods:A total of 900 subjects were examined, of which 343 fulfilled the inclusion criteria; 169 males and 174 females. Molar relationship, overjet (OJ), overbite (OB), midline deviation, crossbite, and crowding/spacing were recorded. Sexual dimorphism was explored using descriptive statistics and the Chi-square tests.Results:The prevalence of malocclusion was 95.6%. Class I, Class II division 1, Class II division 2 and Class III malocclusions comprised 66.5%, 21.9%, 3.5%, and 3.7% respectively of the total sample. The OJ percentage of 51% (zero-3.5 mm), 48.4% (>3.5 mm), 0.6% (≤−3.5 mm to >zero) was recorded, with no significant sex differences (P=0.225). A normal overbite, increased and open bites were observed in 39.9%, 55.1%, and 2.3% of the group respectively with no sexual dimorphism (P=0.970). Crossbite was present in 13.1% of the group, with no significant sex difference (P=0.469). Crowding in the maxillary and mandibular arches were observed in13.9%, and 12.2% respectively. Spacing occurred in 9.4% and 7.9% of the examined maxillary and mandibular arches respectively, with no significant sex difference regarding the presence of spacing/crowding in the maxillary arch (P>0.05). Males, however, had significantly more spacing and less crowding in the mandibular arch (P<0.05).Conclusions:The prevalence of malocclusion in Libyan schoolchildren is among the highest reported in the literature. Crowding is among the least reported manifestations of malocclusion.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The prevalence of malocclusion in urban Libyan schoolchildren

Bugaighis

Karanth

2013

J Orthodont Sci

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“…Other studies documenting a sudden deterioration of occlusal norms have remarked upon the diet, particularly its physical consistency, and how that changes with Western contact. Such study populations have included Eskimos (Waugh, 1937a(Waugh, , 1937bWilliams, 1943;Price, 1936;Wood, 1971), Australian aborigines (Clinch, 1951), Chinese (Liu, 1977;Goose, 1972), Appalachian Americans (Corruccini and Whitley, 1981), Europeans (Lavelle, 1968;Davies, 19721, Asian Indians (Kaul and Corruccini, 1983;, Melanesians (Lombardi and Bailit, 1972;Corruccini and Pacciani, 19831, Amerinds (Niswander, 1966), and reviews of several populations (Klatsky, 1948;Price, 1935;Hunt, 1961).…”

Section: Discussionmentioning

confidence: 99%

Changing occlusal variation in Pima Amerinds

Corruccini

Potter

Dahlberg

1983

American J Phys Anthropol

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Occlusal variables and arch measurements have been recorded on 341 Pima Amerinds pertaining to two samples, one of older individuals raised on traditional diets, the other of younger individuals raised on refined commercial foods that are typical of modern urbanized people. Permanent dental occlusion is significantly more variable from defined ideals in the younger sample, despite their fewer deformities resulting from progressive aging. The youths had relatively narrower palates, correlating with a general trend among industrialized populations and also among experimental animals fed soft diets. Relative rate of deciduous tooth loss and replacement did not correlate with any occlusal variable.

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“…Inferences from craniofacial growth studies [10] also suggest changes in anteroposterior and vertical relationships during the period from adolescence to early adulthood. Results from studies examining patients of a wide age range [11][12][13][14][15][16][17] may therefore not allow inferences to specifi c age groups. Another problem is inability to accurately adjust for any effect of previous treatment when older age groups are included [18,19] .…”

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confidence: 99%

Prevalence and Severity of Malocclusion in Adolescent Kuwaitis

Behbehani¹,

Årtun²,

Al-Jame³

et al. 2005

Med Princ Pract

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Objectives: Our aim was to evaluate prevalence and severity of malocclusion in an adolescent Kuwaiti population. Subjects and Methods: Using a stratified cluster sampling method and excluding non-Kuwaitis, subjects with mesial migration and/or loss of first molars, and subjects with orthodontic treatment experience without availability of initial study models, we examined 1,299 Kuwaitis (674 boys and 625 girls) of mean age 13.2 ± 0.4 years in a regular well lit classroom. We scored molar and canine relationship, overjet, overbite, anterior and posterior cross bite as well as spacing and irregularity of the incisors using gloves, mirrors, rulers, and spatulas. Results: Fourteen, 15, and 71% met the criteria for almost ideal, mild, and moderate to severe malocclusion, respectively. Of the 86% with malocclusion, occurrence of class 1, half step class 2, full step class 2, half step class 3, and full step class 3 was 57.8, 24.9, 6.3, 8.8, and 2.2% for the first molars, and 36.1, 50.0, 6.2, 5.4, and 2.3% for the canines, respectively. Incisor malalignment was the most prevalent malocclusion trait (73.2%). Overjet ≧9.5 mm occurred in less than 1.5%, open bite in less than 3.5%, deep bite with gingival contact in less than 2.0%, complete posterior cross bite in less than 1.5%, and complete anterior crossbite in less than 2.0%. Median diastema was present in about 2/3 of the cases with maxillary anterior spacing as opposed to only about 1/3 of those with mandibular spacing. Conclusion: Our findings suggest that more than 70% of young adolescent Kuwaitis have moderate to severe malocclusion, with incisor malalignment as the most prevalent malocclusion trait.

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Malocclusion in the modern Alaskan Eskimo

Cited by 30 publications

References 2 publications

The prevalence of malocclusion in urban Libyan schoolchildren

The prevalence of malocclusion in urban Libyan schoolchildren

Changing occlusal variation in Pima Amerinds

Prevalence and Severity of Malocclusion in Adolescent Kuwaitis

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