ABSTRACT
Alveolar bone level measurement in periodontal disease is very important because it may affect planning of forthcoming surgery, treatment response and prognosis. Surgical approach is the most accurate procedure for obtaining this measurement. Nowadays, transgingival probing as a non-invasive and accurate method has been claimed to be a proper substitution for surgical measurement and direct visualization. This study aimed at evaluation of diagnostic value of bone sounding technique in estimation of bone level in I, II and III-wall periodontal defects. Ninety vertical defects in 37 individuals with chronic periodontitis having one, two or three-wall defects were assessed. Bone levels were measured by UNC-15 probe. The resulted values were compared with the values obtained during surgery. Collected data were analyzed using Paired samples T test and Pearson's correlation coefficient. High and significant correlation was found between the results of transgingival probing and surgery methods [0.97, 0.94 and 0.95 in one, two, and three-wall defects respectively [p < 0.001]]. The mean bone levels measured by transgingival probing were 0.21, 0.53 and 0.19 mm less than their assigned values in surgery and there was no significant difference between one and three- wall defects [p < 0.001]. The findings of this study indicated a high correlation between the two procedures, bone sounding and surgery, in detection of bone level. Due to the negligible difference, it seems that trans gingival probing could be considered as a feasible replacement for invasive surgical approach in detection of alveolar bone level
Subject(s)
Humans , Bone and Bones , Prognosis , Diagnostic Techniques and ProceduresABSTRACT
A removable partial denture [RPD] is a common treatment modality for restoration of partially edentulous ridges. However this type of treatment may produce serious periodontal problems for remaining teeth. The aim of this study was to determine the effects of RPDs with RPI design on the periodontal indices of abutment and non abutment teeth. For this interventional and prospective study, 22 patients [30-68 years old; mean age of 48 years] were selected. All patients has Kennedy class I partial edentulous areas and were supposed to use removable partial dentures. Forty eight abutment and 48 non abutment teeth were assigned for this study. Clinical parameters including clinical probing depth [CPD], clinical attachment level [CAL], keratinized gingival width [KG], gingival index [GI] were measured in abutment and non-abutment teeth at baseline,1,4 and 12 months after delivery of RPDs. Data were analyzed using wilcoxon test. All clinical indices with the exception of gingival index, at the time of baseline to 12 months, showed significant differences between abutment and non-abutment teeth [p < 0.001]. Significant differences were also noted for all indices between abutment and non-abutment teeth after 12 months. The results of this study indicated that removable partial denture with RPI design plays an important role in producing and intensifying the periodontal diseases in both abutment and non abutment teeth. It seems that this effect is due to the accumulation of more bacterial plaque. So, use of appropriate design and recommendation of good oral hygiene may decrease the severity of side effects