Influence of operator skill level on the clinical outcome of non-surgical periodontal treatment: a retrospective study
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The aim of this study is to evaluate the effect of operators experience and skill on treatment results of initial non-surgical periodontal therapy.
Materials and methods
Initial periodontal treatment was carried out by either second-year periodontal residents (PR) or last year dental students (DS). From the treatment records of patients in each group, plaque and bleeding indices, and pocket depth (PD) at baseline and at re-evaluation were collected retrospectively on each tooth at six locations. Data were separated according to tooth type, area, and probing depth categories, sub-grouped to 1–3, 4–5, and ≥ 6 mm.
Fifty and 49 records of DS and PR patients, accordingly, were analyzed. Initial periodontal treatment improved patient compliance in both groups and reduced signs of inflammation with significantly superior results in the PR group. Significant change in percentage of pockets was recorded in each category. The increase in percentage of sites with PD 1–3 mm and decrease in percentage of PD ≥ 6 mm pockets was significantly (p ≤ 0.001) superior in patients treated by PR. Percentage of 4–5 mm pockets was significantly reduced in both groups (p ≤ 0.01), with a significantly greater reduction in the mandibular molar and anterior teeth in the PR group.
Experience and skill significantly affect the outcome of non-surgical periodontal therapy, with more positive improvement in patient compliance and clinical parameters when performed by a more qualified operator.
Improvement of operator skills may decrease the number of residual pockets and increase patient compliance following non-surgical periodontal treatment.
KeywordsInitial therapy Non-surgical therapy Operator experience Scaling and root planing Periodontal re-evaluation
The authors are grateful to Dr. Ronit Bar-Ness Greenstein (The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel) for helpful discussion and significant help in writing the manuscript.
Compliance with ethical standards
Conflict of interests
Author A: Avital Kozlovsky declares that she has no conflict of interests.
Author B: Alex Rapaport declares that he has no conflict of interests.
Author C: Zvi Artzi declares that he has no conflict of interests.
All procedures performed in studies involving human participants were in accordance with the ethical standards of institutional ethical committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
For this type of study, informed consent was obtained from all individual participants included in the study.
- 2.Wennstrom JL, Tomasi C (2015) Non-surgical therapy Clinical Periodontology and Implant Dentistry, Sixth Edition. Edited by Niklaus P. Lang and Jan Lindhe:. Published 2015 by John Wiley & Sons, Ltd 38 :749–764Google Scholar
- 17.Jin L, Wong KY, Leung WK, Corbet EF (2000) Comparison of treatment response patterns following scaling and root planing in smokers and non-smokers with untreated adult periodontitis. Journal of Clin Dent 11:35–41Google Scholar
- 21.Stambaugh RV, Dragoo M, Smith DM, Carasali L (1981) The limits of subgingival scaling. Int J Periodontics and Restorative Dent 1:30–41Google Scholar