PubMed Health⌕ Search

Biomedical subjects

I M Waite

Publications and source records attributed to I M Waite.

26 records · Page 2Linked to original sources
PubMed1978

A comparison of postsurgical healing following debridement by ultrasonic or hand instruments.

Subjects for the study were 15 patients requiring periodontal surgery in the maxillary posterior quadrants. A split mouth technique with assignment of quadrants by random alternation was used. Assessments were carried out at given time intervals using the Gingival Index, crevicular fluid measurement, Plaque Index and Retention Index. Pain experience following surgery was also noted. Approximately 8 weeks after the initial assessment, periodontal flap surgery was carried out. On the one side debridement was carried out using an ultrasonic scaler, on the other side, hand instrumentation only was used. On the side receiving ultrasonic debridement during surgery, there was an increased rate of healing as measured by the Gingival Index and crevicular fluid. There was no difference in postoperative pain experience, Plaque Index or Retention Index.

Adult↗
PubMed1978

Effects of tobacco smoking on plaque development and gingivitis.

A study was undertaken to test the hypothesis that patients who smoke tobacco have a more rapid rate of plaque deposition and development of gingivitis than those patients who do not smoke tobacco. Twenty subjects participated in this study, their age range was 17 to 30 years. Ten were smokers and 10 were nonsmokers. After an initial thorough removal of all deposits, oral hygiene measures were stopped for 10 days. On days 3, 7 and 10, plaque levels were evaluated using the Plaque Index and the gingival status was evaluated using the Gingival Index. Samples of plaque were stained by the Gram technique and examined microscopically. Plaque levels appeared to be higher in smokers than nonsmokers but the differences were not statistically significant. No consistent differences were evident in the gingival status of the two groups. Microbiological analysis showed a statistically significant increase in the percentage of Gram-positive bacteria to Gram-negative bacteria in the smokers as compared to the nonsmokers on day 3, however these differences were not maintained in the plaque samples taken after the 3rd day.

Adolescent↗
PubMed1976

A comparison between conventional gingivectomy and a non-surgical regime in the treatment of periodontitis.

The treatment of periodontitis by scaling and oral hygiene instruction was compared with the same regime augmented by conventional gingivectomy. The procedures were allocated randomly to contralateral sides of the maxillary arches of 28 patients. Following both regimes there was significant reduction in Plaque Index, Gingival Index, crevicular fluid and depths of pockets. There was slight gain in attachment on the non-surgical sides, and a minor loss of attachment on the surgical sides. Comparing the two regimes, over the second half of the study there was no significant difference in Plaque Index or crevicular fluid; however, on the surgical sides there was significantly greater reduction in Gingival Index and depths of pockets. Residual pockets after either technique were associated with more inflammation than where sulcus depths were less than 2 mm. Retrospective comparisons of the initial depths of pockets with the final gingival status indicated that, when initial depths of pockets had been 3 mm or over, surgical treatment was more effective than non-surgical in reducing the final values of both depths of pockets and inflammation; this finding was statistically significant for some, but not all of the parameters. Treatment of shallow pockets by either technique was more effective than the treatment of deep pockets. Final Plaque Index values of zero were associated with significantly less inflammation and pocketing than where plaque deposits could be detected.

Adult↗
PubMed1975

The present status of the gingivectomy procedure.

The use of the conventional gingivectomy procedure is indicated to achieve optimum gingival contour and to eliminate supra-alveolar pockets where these do not extend beyond the muco-gingival junction. The instrument of choice for the procedure is a gingivectomy knife. Where a blood-free field is required, electrosurgery may be used provided the instrument is not brought into contact with bone. The maintenance of good oral hygiene is essential.

Animals↗