J Periodontal Implant Sci.  2018 Feb;48(1):22-33. 10.5051/jpis.2018.48.1.22.

Effective professional intraoral tooth brushing instruction using the modified plaque score: a randomized clinical trial

• Park SH
• Cho SH
• Han JY

• KMID: 2405407
• DOI: http://doi.org/10.5051/jpis.2018.48.1.22

Abstract

PURPOSE
The purpose of this study was to evaluate the efficacy of the modified plaque score (MPS) for assessing the oral hygiene status of periodontitis patients.
METHODS
A total of 116 patients were included in this study. After evaluation of the Löe and Silness gingival index (GI), Silness and Löe plaque index (PlI), O'Leary plaque control record (PCR), and MPS, patients were randomly assigned to either a conventional tooth brushing instruction (C-TBI) group (n=56) or a professional intraoral tooth brushing instruction (P-TBI) group (n=60). The MPS and clinical parameters were re-evaluated after scaling and a series of root planing. The convergent validity of MPS with the PlI and PCR was assessed. The measurement time for MPS and PCR was compared according to the proficiency of the examiner.
RESULTS
After root planing, the GI, PlI, PCR, and MPS improved from their respective baseline values in both groups. Three different plaque indices including the MPS, showed significant differences between the C-TBI group and the P-TBI group after root planing. The MPS showed significant concurrence with the PCR and PlI. The mean time for PCR measurement was 2.76±0.71 times longer than that for MPS measurement after 2 weeks of training.
CONCLUSIONS
MPS seems to be a practical plaque scoring system compared with the PlI and PCR. These findings suggest that repetitive plaque control combined with an easily applicable plaque index (MPS) may facilitate more effective oral hygiene education and improved periodontal health.

Keyword

Dental plaque index; Oral hygiene; Peri-implantitis; Periodontitis

MeSH Terms

Dental Plaque Index
Education
Humans
Oral Hygiene
Peri-Implantitis
Periodontal Index
Periodontitis
Polymerase Chain Reaction
Root Planing
Tooth*

Figure

• 

  Figure 1 Flow chart of the participants in this study. C-TBI: conventional tooth brushing instruction, P-TBI: professional intraoral tooth brushing instruction, PCR: O'Leary plaque control record, MPS: modified plaque score.

• 

  Figure 2 Six teeth were evaluated to record the PlI (A) and the MPS (B). The MPS was assessed according to the criteria of the PlI using a disclosing solution (C). PlI: Silness and Löe plaque index, MPS: modified plaque score.

• 

  Figure 3 After scaling and root planing with 2 different oral hygiene instruction techniques, the mean PlI scores improved in both groups (A). Changes in the MPS (B) and the PCR (C) in the 2 groups. Improvements in oral hygiene status were significantly greater in the P-TBI group than the C-TBI group according to all 3 plaque indices. PlI: Silness and Löe plaque index, MPS: modified plaque score, PCR: O'Leary plaque control record, P-TBI: professional intraoral tooth brushing instruction, C-TBI: conventional tooth brushing instruction. a)Statistically significant difference (P<0.05).

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