PMID: 9663121Jul 15, 1998Paper

The relationship between probing bone loss and standardized radiographic analysis

Periodontal Clinical Investigations : Official Publication of the Northeastern Society of Periodontists
A R KiliçT Orgun

Abstract

This study evaluated the validity of radiographic alveolar bone defect depth measurements to direct probing measurements. The study was planned in two parts. The first part consisted of the evaluation of artificially prepared defects in dry mandibles. These consisted of 3-mm intrabony defects created at the mesial aspect of the second mandibular molar and a Class II furcation defect on the buccal aspect of the first molar. A total of six standardized periapical radiographs with grids were obtained. They were then evaluated by 10 independent examiners who recorded the distance between the alveolar crest (AC) or root junction (RJ) and base of defect (BD) in the proximal and furcation areas of the teeth. Intra- and inter-examiner differences were assessed. Radiographic results showed that these measurements overestimated the mean defect depth values within 0.12 mm in intrabony defects and underestimated within 0.40 mm in Class II furcation defects. The differences between the radiographic and direct dry mandible defect depth measurements were found to be statistically significant (P < .05) with correlation values r = .50 and r = .46, respectively. The clinical part of the study included evaluation of 64 preoperative radiographs ta...Continue Reading

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