Efficacy of a new papilla generation technique in implantology:
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Abstract
Thirty-three patients with 67 implants were recruited for a prospective randomized controlled blinded study to compare the efficacy of a new uncovering technique with the conventional uncovering technique for papilla generation between implants and between an implant and an adjacent tooth.
Patients were randomly distributed in a test and control group, and also were randomly assigned to two periodontal residents. Resident #1 was the inventor of the technique and Resident #2 had been trained in this technique. The residents measured the baseline thickness of the tissue covering the implant before and following the uncovering technique, along with the height of the papilla. The Pocketing probing depth, Plaque Index, Gingival Index, Bleeding Of Probing were measured at 0 and 6 months, and standardized reproducible radiographs were taken at 0, 3 and 6 months. A faculty member who was blinded to the study measured the height of each papilla at 3 and 6 months. Statistical analysis revealed a consistency between the 0, 3, and 6 month measurements. Hence the baseline data was included for a better evaluation.
The mean difference between two surgical methods in favor of the new technique was over 1.5 mm in all three visits and statistically was highly significant. The mean difference between the two groups for papilla height between implant and tooth was 1.41mm (P=0.001), 1.76mm (P[less than]0.001), 1.71mm (P[less than]0.001) at 0, 3 and 6 months respectively. An overall significant difference in papillae height between the two groups was detected for implants adjacent to teeth (p=0.0003). However, no change in papillae height was detected over time (p=0.856) or by either group over time (p=0.788). The mean difference between the two groups for papilla height between implants was 1.14 mm (P[less than]0.018), 1.11 mm (P[less than]0.012), 0 .78 mm (P[less than]0.138) at 0, 3 and 6 months. An overall significant difference for papilla height between the implants was detected between the two groups (p=0.020). However, the alteration in papilla height between adjacent implants over time did not achieve statistical significance (p=0.062). There was no significant difference in PPD, PI, GI, BOP and in the thickness of the soft tissue covering the implant between the two groups. No statistical difference was found on the overall bone level between two groups at 3 months (P[less than]0.185) and 6 months (P[less than]0.911).
In conclusion, a highly significant difference of papilla height was found between test and control groups, with the test group having greater papilla height than the control group. This is the first study that provides data comparing the papilla regeneration between implant and adjacent tooth and between two adjacent implants.
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Thesis (M.S.D.)--Boston University, Henry M. Goldman School of Dental Medicine, 2004 (Periodontology).
Includes bibliography (leaves 111-121).
Thesis (M.S.D.)--Boston University, Henry M. Goldman School of Dental Medicine, 2004 (Periodontology).
Includes bibliography (leaves 111-121).
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