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Year : 2011  |  Volume : 23  |  Issue : 4  |  Page : 543-547

Comparison of measurements of alveolar bone levels by clinical, bitewing and panoramic radiography

1 Professor and Head, Department of Oral Medicine and Radiology, G Pulla Reddy Dental College and Hospital Kurnool, Andhra Pradesh, India
2 Professor and Head, Department of Oral Medicine, Swami Devi Deen Dayal Dental Hospital and College, Barwala, Panjab, India

Correspondence Address:
V Sairam
Professor and Head, Department of Oral Medicine and Radiology, G Pulla Reddy Dental College and Hospital, Nandyal Road, Kurnool-518002, Andhra Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.5005/jp-journals-10011-1219

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Background: The diagnosis of periodontal diseases should be made systematically which includes both clinical and radiographic examination. Dental radiographs (bitewing and panoramic) are important in the detection of periodontal disease. The present study was aimed to compare the panoramic, bitewing radiography and pocket probing for measurement of alveolar bone levels. Materials and methods: The study group comprised of 120 subjects in the age group of 20 to 59 years with equal sex distribution. Clinical probing depth was recorded at mesial and distal sides of premolars and molars in both the arches by William's periodontal probe. In all patients, a single panoramic film and four bitewing radiographs were taken for premolars and molars on either side. Radiological measurements in the panoramic and bitewing intraoral films were carried out with a profile projector with computerized digital display and analyzed. Results Mean clinical probing depth at the mesial and distal sites in males was 3.23 ΁ 1.29 and 3.32 ΁ 1.37 respectively. In females, it was 3.41 ΁ 1.46 and 3.48 ΁ 1.45. The percentage of difference between probing depth, bitewing measurements and probing depth, panoramic measurements were calculated and compared. Conclusion: The present study indicated a definite underestimation of alveolar bone level by both the radiographic techniques when compared to clinical probing. Even though bitewing radiography presented higher accuracy when compared to probing, for those sites or teeth that are possible to assess, the diagnostic information available with panoramic radiography is comparable to that with bitewing radiography for marginal bone level.

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