Teeth mobility is an important part of a periodontal examination, because it represents
a function of the persisting height of the alveolar bone and the width of the periodontal
ligament. The purpose of this study was to evaluate clinical difference in teeth mobility
after treatment with the modified Widman flap and the undisplaced flap in humans.
Twenty males with moderate periodontal disease were selected. The severity of
periodontal disease was evaluated with sulcular bleeding index, pocket depth and
attachment level and tooth mobility was measured with Periotest(Siemens Co., Germany)
at the initial examination, 1, 2, 4, 6, 8 and 12 weeks following the modified Widman flap
and the undisplaced flap operation using the split-mouth technique. The relation of
mobility to clinical parameters was statistically analyzed by multiple regression and the
change of teeth mobility according to healing process by independent t-test using SPSS
program.
The results were as follows:
1. There was a strong relationship between the Periotest value(PTV) and attachment
level.
2. The change of teeth mobility in both flap procedures was increased significantly at 1
week post-op. and was decreased to preoperative level at 4 weeks post-op, in modified
Widman flap and at 6 weeks post-op, in undisplaced flap.
3, The change of teeth mobility in premolar teeth' group in undisplaced flap compared
to modified Widman flap was generally increased but these changes were not
statistically significant. The changes of teeth mobility in molar teeth group in
undisplaced flap was increased significantly at 2 weeks post-op.,
4. The change of teeth mobility following undisplaced flap was increased significantly
compared to that of modified Widman flap at 2 weeks post-op..
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