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Submitted: 28 Oct 2011
Accepted: 23 Mar 2012
ePublished: 25 Sep 2012
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J Periodontol Implant Dent. 2012;4(1): 24-28.
doi: 10.5681/jpid.2012.006
  Abstract View: 182
  PDF Download: 292

Research Article

Plaque Removal Ability in Left- and Right-handed Patients in Different Parts of the Oral Cavity

Mahdi Kadkhodazadeh 1,2*, Amin Khodadustan 3, Reza Amid 4, Ayoob Darabi 5

1 Dental Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2 Assistant Professor, Department of Periodontics, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3 Assistant Professor, Department of Periodontics, Faculty of Dentistry, Hamadan University of Medical Sciences, Hamadan, Iran
4 Assistant Professor, Department of Periodontics, Faculty of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
5 Private Practic, Tehran, Iran
*Corresponding Author; E-mail: Mahdi@kadkhodazadeh.ir

Abstract

Background and aims. The aim of this study was to evaluate the effect of right/left handedness on the ability of patients to remove dental plaque in various quadrants of the mouth.

Materials and methods. This double-blind cross-sectional study was conducted in two phases with a two-week time interval, on 40 subjects. During the two visits, the subjects were requested to brush their teeth for 3 minutes with a soft toothbrush without a dentifrice using the Bass technique. Pre- and post-brushing plaque indexes (PI) were measured for all the dental surfaces in various quadrants of the mouth.

Results. Following plaque removal at the end of the first phase, RH subjects had higher average of PI in upper left quadrants compared to upper right quadrants (P=0.044), whereas lower right quadrants had higher average of PI compared to lower left quadrants (P=0.387).

Conclusion. This study indicates that LH subjects have better ability to access the right quadrants of the mouth to perform oral hygiene procedures, whereas RH subjects are more successful in plaque control of the left quadrants. 

Keywords: Dental plaque, oral hygiene, right- or left-handedness, tooth brushing
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