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The relationship between probing bone loss and standardized radiographic analysis
A R Kiliç1, E Efeoglu, S Yilmaz
1Department of Periodontology, Faculty of Dentistry, Marmara University, Nisantasi-Istanbul, Turkey.
Periodontal Clinical Investigations : Official Publication of the Northeastern Society of Periodontists
|July 15, 1998
Summary
Radiographic measurements of alveolar bone defects show differences from actual depths. While a strong correlation exists with clinical assessments, these interpretations can overestimate or underestimate defect sizes in periodontal evaluations.
Area of Science:
- Periodontology
- Dental Radiology
Background:
- Accurate assessment of alveolar bone defect depth is crucial for effective periodontal treatment planning.
- Radiographic imaging is a common tool, but its accuracy in measuring bone defects requires validation.
Purpose of the Study:
- To evaluate the validity of radiographic measurements for determining alveolar bone defect depths.
- To compare radiographic measurements with direct probing and clinical assessments in intrabony and furcation defects.
Main Methods:
- Part 1: Evaluated artificial intrabony and Class II furcation defects in dry mandibles using standardized periapical radiographs.
- Part 2: Assessed preoperative radiographs from 64 patients undergoing periodontal surgery, comparing radiographic defect depths to clinical measurements.
Main Results:
- In dry mandibles, radiographs overestimated intrabony defect depth by 0.12 mm and underestimated Class II furcation defects by 0.40 mm (P < .05).
- A strong correlation (r = .85, P < .001) was found between radiographic and clinical assessments in the patient group.
- The difference between radiographic and clinical measurements was within 1 mm in 58% of cases.
Conclusions:
- Radiographic interpretation of intrabony and furcation defects shows discrepancies compared to actual bone defect depths.
- Despite differences, radiographic assessments correlate well with clinical findings and can be a valuable aid in periodontal evaluation.