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Abstrak :
ABSTRAK
Unilateral posterior crossbite is commonly seen in mixed dentition, but it couldn't be self corrected. If this condition is not treated properly, it could lead to asymmetric face. Asymmetric face with unilateral posterior crossbite could make the treatment process more difficult. The objective of this study is to find out the relationship between transversal skeletal asymmetry and unilateral posterior crossbite. Patients older than 13 years with skeletal asymmetric face, who had never undergone orthodontic treatment or facial sugery were selected. The sample consisted of 15 females and 6 males (15 - 32 years old). Anteroposterior cephalogram was used for determining the difference between right and left of antegonial and the deviation of menton. Criteria for asymmetry were more than 3 mm on Antegonial and 2 mm or more on Menton. Mid Sagital Reference (MSR) was used as reference line. Unilateral posterior crossbite could be seen in the dental model. The data was analyzed using Mann Whitney test. It was revealed that from 21 samples, 38.1% was found to have unilateral posterior crossbite with majorly involving four posterior teeth. Conclusion: There is no relationship between transversal skeletal asymmetry and unilateral posterior crossbite (p > 0,05).

Abstrak :
ABSTRACT
Latar belakang: Overjet dan overbite diluar batas normal dapat meningkatkan kontraksi otot mastikasi yang merupakan salah satu kemungkinan penyebab dari tension-type headache TTH . Tujuan: Mendapatkan informasi mengenai proporsi masalah overjet dan overbite pada remaja kelas XI yang mengalami TTH di SMAN 81 Jakarta. Metode: 324 murid kelas XI mengisi kuesioner nyeri kepala mengunakan metode wawancara terpimpin. Didapatkan 112 subjek penelitian dan diperiksa overjet dan overbite menggunakan periodontal probe. Hasil: Sebanyak 43,4 remaja mengalami TTH. Diantaranya, 40,2 mengalami masalah overjet 26,8 overjet berlebih, 13,4 crossbite anterior dan 30,4 mengalami masalah overbite berupa deepbite. Kesimpulan: Jumlah subjek dengan TTH yang memiliki masalah overjet dan overbite lebih sedikit dibandingkan jumlah subjek dengan overjet dan overbite normal.Kata kunci: tension-type headache, overjet berlebih, crossbite anterior, deepbite.

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ABSTRACT
Background Overjet and overbite beyond normal limits can lead to increased contraction of masticatory muscle which expected as one of the causes of tension type headache TTH . Objective To attain the proportion of overjet and overbite problems in adolescents on 11th grade at SMAN 81 Jakarta who sustain TTH. Methods 324 students on 11th grade were given headache questionnaires with guided interview. 112 subjects, who were chosen, were examined to measure their overjet and overbite using periodontal probes. Result 43,4 students experience TTH. From all of them, 40.2 having an overjet problems 26.8 of excessive overjet, 13.4 of anterior crossbite . Besides, 30.4 having an overbite problem as deepbite. Conclusion The number of adolescents with TTH who were having overjet and overbite problems is fewer than the number of adolescents with normal overjet and overbite.Keywords tension type headache, excessive overjet, anterior crossbite, deepbite.

Abstrak :
ABSTRAK
Latar belakang: Crossbite merupakan salah satu maloklusi yang sering ditemukan di masyarakat. Crossbite dapat menyebabkan trauma oklusi yang dapat memperberat penyakit periodontal. Masih jarang dijumpai penelitian yang langsung menghubungkan pengaruh crossbite terhadap jaringan periodontal. Tujuan penelitian: Menganalisis hubungan crossbite dengan status periodontal. Metode: Penelitian cross-sectional pada 68 subjek normalbite dan 68 subjek crossbite menggunakan data kartu status rekam medik Klinik Integrasi RSKGM FKG UI tahun kunjungan 20010-2015. Data dianalisis menggunakan uji Mann-Whitney. Hasil: Tidak ada perbedaan bermakna p>0,05 rerata resesi gingiva, kehilangan perlekatan, dan perdarahan gingiva pada subjek normalbite dibandingkan dengan subjek crossbite. Terdapat perbedaan bermakna.

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ABSTRACT
Background Crossbite is one of the most common malocclusion found in the society. Crossbite is a potential cause of trauma from occlusion and can be a cofactor of periodontal diseases. However, research on the effects of crossbite on periodontium is still rare. Objective To analyze the relationship between crossbite and periodontal status. Method A cross sectional study of 68 subjects with normalbite and 68 subjects with crossbite using dental records of patients in Klinik Integrasi RSKGM FKG UI during 2010 2015. Data was statistically analyzed by Mann Whitney test. Result There were no statistically significant differences p 0,05 in the mean values of gingival recession, loss of attachment, and gingival bleeding between normalbite and crossbite groups. However, statistically significant difference.