Fróðskaparrit - 01.01.1978, Page 104

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Skeivar tenn hjá føroyskum børnum
Solow, B.: A method for computer analysis of epidemiological malocclu-
sion data. Europ. orthodont. Soc. Trans. 1964, p. 391—399.
Solow, B., & S. Helm: A method for tabulation and statistical evalution
of epidemiological malocclusion data. Acta odont. scand. 26: 63—88,
1968.
Thylstrup, A.: Cariesforekomster blandt færøske børn i alderen 5 til 13 ár.
Árhus Tandlægehøjskole 1974.
SUMMARY
The purpose of this study was to determine the prevalence of maloc-
clusion in Faroese children with deciduous and permanent dentition, to
examine sex differences in the prevalence rates, and to compare the preva-
lence rates of Faroese children to those of Danish children.
The registration was made during the winter 1975—76 and covered
217 pre-school children and 591 school children from the 8th classes of
Faroese schools excepting those on Suðuroy. The school children were
grouped according to extraction of permanent teeth and orthodontic treat-
ment. The studied group included only those who had received neither of
these treatments (120 girls and 138 boys). Tables 1—8.
The registrations were made according to the method of Bjørk, Krebs
& Solow (1963) for »Epidemiological Registration of Malocclusion«. After
the examination, the data were checked for logically incompatible re-
cordings. The frequencies of the different traits of malocclusion were
determined by means of computer programs developed by Solow & Helm
(Solow 1964, Solow & Helm 1968), although rewritten to a BASIC version
for this study.
The pre-school children had few dentional anomalies, but high fre-
quencies of occlusal and space anomalies. Every third child had extreme
maxillary overjet, frontal open bite and distal molar occlusion, while
12 °/o had cross-bite, 36 °/o had spacing in the upper jaw and 33 °/o spacing
in the lower jaw. Only 2 pre-school children had crowding (tables 13,
16 and 19).
The school children had higher frequencies of dentional anomalies,
deep bite, scissors bite and crowding, equal frequencies of distal molar
occlusion and cross-bite, and lower frequencies of extreme maxillary over-
jet, frontal open bite and spacing than the pre-school children (tables 14,
15, 17, 18, 20 and 21).
Compared to the Danish pre-school children, the Faroese pre-school
children had higher frequencies of frontal open bite, more mesial molar
occlusion, less distal molar occlusion, fewer rotations and less spacing.
The Faroese school children had higher frequencies of ectopic eruption,