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Periodontitis has been defined as the presence of gingival inflammation at sites where there has been a pathological detachment of collagen fibers from cementum, the junctional epithelium has migrated apically, and bone loss can be detected radiographically. One of the factors, thought to be responsible for the initiation of inflammatory periodontal disease, is occlusal trauma. The purpose of this study is to find the relationship of trauma from occlusion with chronic periodontitis based on the quality and quantity of alveolar bone in the radiographic features.This study is a descriptive analytical research with cross-sectional approach and the sample is determine by accidental sampling. According to the study, 11 patients were found with total 74 teeth and had been divided to 35 teeth due to trauma from occlusion and 39 teeth with normal occlusion at the Periodontal Clinic, Faculty of Dentistry USU Medan both men and women at the age of 40 to 60 years old. This study begins by filling in the informed concent, clinical examination of the oral cavity and periapical radiographic images in the patient. Data analysis was performed by using a Chi Square test to determine the relationship of trauma from occlusion with chronic periodontitis based on the quality and quantity of alveolar bone in the radiographic features. The result of statistical test shows that there is a significant correlation between trauma from occlusion with periodontal ligament space (mesial) with p = 0,001 (p <0,005), lamina dura (mesial) with p = 0,000 (p <0,005) and pattern of alveolar bone destruction (both mesial and distal) with p = 0,000 (p <0,005). The statistical test also showed that there is no significant relationship between trauma from occlusion with periodontal ligament space (distal) with p = 0,051 (p <0,005), lamina dura (distal) with p = 0,082 (p <0,005) and loss of bone height with the value p = 0.577 (p <0.005). The results show that there is an associated relationship of trauma from occlusion with chronic periodontitis based on the quality and quantity of alveolar bone in radiographic features. Keywords–trauma from occlusion, periodontitis, alveolar bone, quality and quantity, radiographic features

The Relationship of Trauma from Occlusion with Chronic Periodontitis Based on the Quality and Quantity of Alveolar Bone in the Radiographic Features