EVALUATION OF MAXILLARY AND MANDIBULAR RIGHT AND LEFT SIDE TOOTH SIZE DISCREPANCIES IN AVERAGE AND HIGH BOLTON GROUPS

Year 2023, Volume: 6 Issue: 1, 96 - 101, 28.02.2023

Feyza Hacıağaoğlu Akkız , Evren Öztaş

https://doi.org/10.26650/JARHS2023-1122152

Abstract

Objective: Evaluating the effects of maxillary and mandibular right and left side tooth size discrepancies on achieving dental midline symmetry and favorable orthodontic occlusion. Materials and Method: 90 pretreatment dental casts, selected randomly and in permanent dentition, were grouped according to the Bolton analysis as Average Bolton Group (ABG; n:67) and High Bolton Group (HBG; n:23). To designate the left and right dentition size asymmetries and calculate the mesiodistal width of the mandibular and maxillary teeth, a digital caliper was used on orthodontic casts. The hypothesis was tested using a statistical hypothesis test. To statistically compare ABG and HBG groups, the independent samples “t” test was used. The results were evaluated at a significance level of p<0.05. Results: The difference between the total width of the upper right and left dentition was 0.65±0.55 mm (p<0.05) and the difference between the width of the lower right and left dentition was 0.55±0.49 mm (p<0.05) in the ABG, while in HBG the difference between the sum of the upper right and left dentition was 0.55±0.39 mm (p<0.05) and the difference between the sum of the lower right and left dentition was 0.53±0.43 mm (p<0.05). There were no statistically significant differences between the ABG and HBG (p>0.05) according to the independent samples “t” test. Conclusions: The results indicated that there are minimal but statistically significant differences between the right and left mesiodistal tooth width totals both in ABG and HBG that should be considered to attain favorable orthodontic treatment results and dental midline symmetry.

Keywords

Bolton Analysis, Average Bolton, High Bolton, Dental Asymmetry, Tooth Size Discrepancy

NORMAL VE YÜKSEK BOLTON GRUPLARINDA MAKSİLLER VE MANDİBULAR SAĞ VE SOL DİŞ BOYUT FARKLARININ DEĞERLENDİRİLMESİ

Abstract

Amaç: Maksiller ve mandibular sağ ve sol diş boyutlarındaki uyumsuzlukların dental ve orta hat simetrisini sağlama ve uygun ortodontik oklüzyon elde etme üzerindeki etkisini değerlendirmektir. Gereç ve Yöntem: Ortodontik tedavi öncesi daimi dentisyondaki 90 alçı model rastgele seçilmiş ve Bolton analizine göre Normal Bolton Grubu (NBG; n:67) ve Yüksek Bolton Grubu (YBG; n:23) olarak sınıflandırılmıştır. Maksiller ve mandibular dişlerin meziodistal genişliğini ölçmek ve aralarındaki sol ve sağ diş boyutu asimetrilerini belirlemek için doğrudan alçı modellerden dijital kumpas ile ölçümler yapılmıştır. Hipotezi test etmek için İstatistiksel Hipotez Testi kullanılmıştır. NBG ve YBG’yi istatistiksel olarak karşılaştırmak için Bağımsız Gruplar “t” testi kullanılmıştır. Sonuçlar p<0.05 anlamlılık düzeyinde değerlendirilmiştir. Bulgular: İstatistiksel hipotez testi sonuçlarına göre, NBG’de üst sağ ve sol dişlerin toplamı arasındaki farkın 0.65±0.55 mm, alt sağ ve sol dişlerin toplamı arasındaki farkın ise 0.55±0.49 mm (p<0.05) bulunurken, YBG’de üst sağ ve sol diş genişliği arasındaki fark 0.55±0.39 mm (p<0.05) ve alt sağ ve sol diş genişliği arasındaki fark 0.53±0.43 mm (p<0.05) olarak bulunmuştur. Bağımsız gruplar “t” testi sonucunda, NBG ve YBG arasında istatistiksel olarak anlamlı bir farklılık bulunmamıştır (p>0.05). Sonuç: Bolton analizi, ideal bir oklüzyon elde etmek için üst ve alt diş boyut uyumsuzluklarını ve oranlarını ifade ederken, bir ortodontik tedavi planında sağ ve sol yarım arklardaki diş boyutu farklılıkları çoğunlukla göz ardı edilmektedir. Sonuçlar hem ABG hem de HBG’de sağ ve sol meziodistal diş genişliği toplamları arasında, uygun ortodontik tedavi sonuçları ve dental orta hat simetrisi elde etmek için dikkate alınması gereken minimal ancak istatistiksel olarak anlamlı farklılıklar olduğunu göstermiştir.

Keywords

Bolton analizi, yüksek bolton, normal bolton, dental asimetri, diş boyutu uyumsuzluğu

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