دراسة إحصائية لتأثير نخور الأسنان المؤقتة في الرحى الأولى الدائمة

Abstract EN

Background & Aim: The first permanent molar is the most susceptible permanent tooth to early dental caries.

Therefore, the statistical studies aim to detect the possible causes and to prevent the incidence of this caries.

The aim of this study is to assess impact of caries in the primary canine, first primary molar or second primary molar on caries incidence in the first permanent molar.

Materials and methods: This study consisted of 241 healthy children (145 males, 96 females), they were randomly selected within the age of 6-10 years.

Clinical oral examination was performed to detect the affected primary teeth (canine, first and second molars) and the first permanent molar with caries, missing due to caries or filling.

The collected data were analyzed using SPSS version 18.

Results: The caries of first permanent molar is statistically correlated with the adjacent second primary molar affected by caries, and with the caries of the adjacent upper right primary canine.

On the other hand, there is no statistically correlation between the caries of first primary molar and the caries of first permanent molar.In addition, the gender has no statistically effect on the frequency of caries in the first permanent molar or the primary teeth included in this study.

Conclusion: The first permanent molar is affected by caries incidence in the first and second primary molar and primary canine.

However, the gender has no impact on the incidence of caries neither in the first permanent molar nor in the primary teeth included in this study