Specificity and sensitivity of observational diagnosis in inflammatory gingivalenlargement

Publish Year: 1395
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

MPHBS01_167

تاریخ نمایه سازی: 22 آبان 1395

Abstract:

Introduction: One of the commonest periodontal diseases in children is gingival enlargement usually assessed by two indices: GI index (with a non-piercing probe) and McGraw index (based on observation). In this study, we wanted to understand how many of positive cases in GI index were positive in McGraw index too and how many were pseudonegative. Materials and methods: 1113 7-13 year old girls and boys with appropriate criteria from 10 primary schools in Gorgan-Iran were selected randomly. In order to evaluate the presence or absence of gingival enlargement, location and severity, at first children were examined with McGraw index and then with GI index. Results: Results were analyzed by SPSS16 through chi-square test and T-test. From 1002 cases out of 1113 that were normal in GI index, 703 were normal in McGraw index too, but 299 were pseudo-positive. From 111 patients diagnosed by GI index, 98 were positive in McGraw index too, but 13 were pseudo-negative. Results show that in all cases sensitivity of McGraw index was more than its specificity, which means this index is more capable in diagnosing patients than the normal ones. Conclusion: Therefore it is suggested to use this index at first and after distinguishing patients exacttests be done.

Authors

Amir Reza Ahmadinia

Periodontologist, Dental Research Center, Golestan University of Medical Sciences, Gorgan, Iran.

Mohammad Ali Vakili

Department of Health and Social Medicine, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan,Iran

Maryam Ghelichli

Dental School, Golestan University of Medical Sciences, Gorgan, Iran.