Özet:

Objective: To determine the prevalence of anterior crossbite in Class I and III malocclusion. Study Design: Cross sectional study. Place and Duration of Study: Orthodontic Department at Armed Forces Institute of Dentistry, Rawalpindi, Pakistan, from Jan 2017 to Dec 2017. Methodology: Six hundred patients including 190 males and 410 females with the age range of 6-25 years were included in study. Study was conducted on the pretreatment dental casts. A proforma indicating the biodata, presence or absence of anterior crossbite, number of teeth in anterior crossbite, most common tooth involved in anterior corssbite and presence of anterior crossbite either in Class I or III malocclusion was filled for each patient. Data was entered into SPSS version 24, frequencies and percentages were calculated for quantitative analysis. Results: One hundred thirty seven patients (22.8%) out of 600 were found to have anterior crossbite out of that 54 (39.42%) were males and 83 (60.58%) were females. Upper left lateral incisor was found to be most commonly involved tooth (15.8%) in anterior corssbite, and anterior crossbite was found in 71 (11.8%) patients with Class I, and 66 (11%) patients with Class III malocclusions. Conclusion: The results of this study reveal that anterior cross bite was commonly encountered problem in orthodontic patients; it should not be left untreated, and must be diagnosed at the earliest and be corrected so as benefit the orthodontic patients maximally.

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