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ePaper created 2015-11-17, 15:11:47 | version 1.38.0
56 Volume 1 | Issue 1/2015 Journal of Oral Science & Rehabilitation Results Baseline examination The 33 subjects (14 females and 19 males) who completed the study had a mean age of 27.4 (S.D. ± 7.8; range: 19–48). Sixteen subjects were allocated to the test group and 17 to the control group. No difference in age was noted between the test and control groups. Only three were smokers, one in the test group and two in the control group (Table 1). Atotalof33 mandibularthird molars (20 on therightand13ontheleftside)wereexamined. The majority had a mesio-angular or horizontal position (Table 1). The presence of plaque was noted at all distal sites of the second molars, and 29 of these sites had BoP (Tables 2a & b). The mean PPD at the distal sites of the second molars, based on the deepest value measured at three points (distobuccal, distal and disto- lingual),was 7.4 mm (S.D. ± 1.5),with no differ- ence between the test and control groups (Table 2c). Theradiographicmeasurementsatthebase- line examination showed that 26 molars had bone loss of up to one-third of the root length, and 7 molars between one-third and two-thirds, while bone loss exceeding two-thirds of the root length was not recorded in any molars (Table 2e). The mean (± S.D.)/median bone loss was 4.9 (2.4)/3.6 mm for the test group and 4.5 (0.9)/4.2 mm for the control group, and no statistically significant difference was noted in thisrespectbetweenthetwogroups(Table2d). One-month examination At one month after the extraction of the third molars, only4 ofthe 16 (25%) distal sites ofthe second molars presented with plaque (Table 2a) and 5 showed bleeding after running the probe in the gingival sulcus. Six-month examination At six months after extraction, 5 out of the 16 (31%) distal sites of the second molars pre- sentedwith plaque inthetest group, compared with 9 out of17 (53%) inthe controlgroup,with areductionof69%and47%,respectively,from the baseline value (Table 2a). The presence of BoP was recorded at 6 out of 16 (38%) in the test group, compared with 8 out of 17 (47%) in the control group (Table 2b). The mean PPD measured at the distal sites of the second mo- larswas 4.1 mm (S.D. ± 1.1) inthetest group and 3.8 mm (S.D. ± 1.4) in the control group. None of these measurements were statistically sig- nificantly different between the two groups (Table 2c). The PPD reduction with respect to thebaselinevaluewas3.4 mminthetestgroup and 3.5 mm in the control group. Both values were statistically significantly different from thebaselinevalues(p< 0.001).Nodifferencein the healing pattern was observed between the test and control groups with respect to the presence of a PPD of < 5 mm without BoP/Sup. Onlyone pocket distaltothe second molarwith a PPD of 6 mm with bleeding was recorded in a patient in the control group. Rem ova l of pa rtia lly eru pte d mandi bu lar thi rd mo lars Number of patients 16 (5 female) 17 (9 female) 33 (14 female) Age 21–48 19–36 19–48 (mean 30.1, S.D. ± 8.9) (mean 24.8, S.D. ± 5.0) (mean 27.3, S.D. ± 7.8) Smokers 1 2 3 Number of teeth # 48 9 11 20 Number of teeth # 38 7 6 13 Horizontal 8 6 14 Mesio-angular 8 10 18 Vertical 0 1 1 Disto-angular 0 0 0 Number of molars according to angulation Test Control All Table 1Table 1 Clinical features of patients and teeth included in the study. Age 21–4819–3619–48 Smokers 123 4891120 387613 Horizontal 8614 Mesio-angular 81018 Vertical 011 Disto-angular 000