Abstract
Background: Leeway space is an excess space available because of the differences between the amount of mesiodistal width of canine, first premolar and second premolar and the amount of mesiodistal width of primary canine, first molar and second molar. There's a variation of Leeway space among individuals. This variation occurs because of growth and development period which are influenced by environmental factors, nutrition and ethnic variations. Purpose: The purpose of this study was to determine the difference in the average Leeway space of Banjarese population with the size of Leeway space according to Proffit.Method: This study used an observational analytic with cross sectional approach. The number of mesiodistal width of primary c, m1, and m2 is substracted with the number of mesiodistal width of permanent C, P1, and P2 of 77 samples to determine the average Leeway space and then compared with the Leeway space according to Proffit. Measurements were done using a digital caliper followed with data analysis using Mann-Whitney test.Result: The average of Banjarese population Leeway space is 0.37 mm in each region of the maxilla and 2.2 mm in each region of the mandible. Results of the Mann-Whitney test showed that there were significant differences in maxillary Leeway space of Banjarese population compared to the Leeway space according to Proffit.Conclusion: The conclusion of this study is there were differences between the average Leeway space of Banjarese population with the Leeway space according to Proffit.
Highlights
%DFNJURXQG Leeway space is an excess space available because of the GLႇHUHQFHV EHWZHHQ WKH DPRXQW RI PHVLRGLVWDO ZLGWK RI FDQLQH ¿UVW SUHPRODU and second premolar and the amount of mesiodistal width of primary canine, ¿UVW PRODU DQG VHFRQG PRODU 7KHUH¶V D YDULDWLRQ RI /HHZD\ VSDFH DPRQJ individuals
This study used an observational analytic with cross sectional approach
m2 is substracted with the number of mesiodistal width
Summary
Penelitian ini merupakan jenis penelitian analitik observasional yang ditujukan untuk mencari rerata besaran OHHZD\ VSDFH pada Suku Banjar dan apakah ada perbedaan rerata leeway space pada Suku Banjar dengan OHHZD\ VSDFH PHQXUXW 3URႈW 'HVDLQ \DQJ digunakan pada penelitian ini adalah cross sectional. Purposive Sampling adalah pengambilan sampel didasarkan pada kriteria yang telah ditetapkan baik kriteria LQNOXVL PDXSXQ HNVNOXVL ,QNOXVL GDUL VDPSHO penelitian yaitu berumur 7-9 tahun, memiliki gigi bercampur, keturunan Suku Banjar (tiga keturunan yaitu kakek, nenek, ayah dan ibu dari sampel merupakan Suku Banjar), dapat membuka mulut dengan baik, tidak terdapat karies pada bagian proksimal, tidak infraoklusi, bersedia menjadi sampel, dan kooperatif. Sedangkan ekslusinya meliputi sampel dengan keturunan campuran antar dua atau lebih suku, umur lebih dari 9 tahun, gigi kaninus, molar pertama dan molar kedua sulung tidak ada atau karies proksimal, serta kakek, nenek, ayah ataupun ibu bukan Suku Banjar. Perhitungan sampel dengan rumus analitik numerik tidak berpasangan mendapatkan hasil minimal sampel sebanyak VDPSHO ,QVWUXPHQ SDGD SHQHOLWLDQ LQL yaitu dengan menggunakan data diri subjek penelitian, consent, kaliper, alginat, gips VWRQH ERZO dan spatula, sendok cetak dan IRWR UDGLRJUD¿ SHULDSLNDO 9DULDEHO SHQHOLWLDQ ini terdiri dari variabel bebas yaitu Suku Banjar dan variabel terikat yaitu rerata besaran /HHZDD\ VSDFH. Jika data tidak terdistribusi normal, maka analasis data dilakukan dengan menggunakan uji Mann Whitney
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