Eleveld, C.A. (2015) De invloed van links- en rechtshandig poetsen op de aanwezigheid en locatie van plaque, cariës (D), restauraties (F), ontbrekende elementen (M) en de totale cariëservaring (DMFS) bij volwassenen. thesis, Dentistry.
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Abstract
Background and aim: Caries and periodontal disease are related to plaque and therefore to an inadequate oral hygiene. This study attempted to get answers to the question whether the preferred hand affects the presence and location of plaque, caries (C), restorations (F), missing elements (M) and the total caries experience. Material and methods: Two datasets were used: in 2007 TNO collected data from people living in ‘s-Hertogenbosch. ‘s-Hertogenbosch is considered to be representative for the Netherlands 1. In this study was not inquired whether the respondents are left- or right handed. It is well known that 85-90% of the Dutch population is right-handed 2-4, which was also adopted for this group of respondents. The second dataset is collected from April to August 2014 in Zuidlaren where there is asked for the preferred hand. The data is obtained by a survey and a clinical oral inspection. All surfaces with a cavity and/or restauration and missing elements are recorded. For the plaque registration the ‘Simplified Oral Hygiene Index’ (OHI-S) is used where for the Zuidlaren-data a modification has been made by also registering plaque on the canines and both central incisors. The preferred hand is determined with the ‘Edinburgh Handedness Inventory’ where an adjustment is made for the Dutch situation by replacing the cricket bat for a baseball bat. All data is analyzed with ‘Wilcoxon signed rank’ tests in SPSS. Results: The study population comprised 1018 dentate people in the TNO study and 133 persons in the Zuidlaren research. They all have completed the survey and they participated in the clinical oral examination. Both data sets are used to get an impression whether there are differences in plaque and DMF indicators left and right in the mouth, there was no distinction made between left and right handers. The results have shown that the average plaque scores were higher on the right molars and canines than on the left molars and canines. This significant difference was present on the canines and molars in the lower jaw, but not in the upper jaw. On the molars in the upper jaw was right as much plaque as left ór on the 26 was more plaque than on the 16. On the incisors in both jaws and the canines in the upper jaw there were no significant differences. With regard to the number of surfaces associated with dental caries and restorations, there were no significant differences between left and right. There was a tendency that the number of missing elements on the left is higher than on the right and the DMFS score left in the mouth was higher than right in the mouth. The data collected in Zuidlaren did show for the left handed persons that there were no significant differences with regard to plaque, surfaces with a restoration, missing elements and the total caries experience. Right handed persons had on the molars and canines on the right side a higher average plaque score than on the left molars and canines. This difference also applied to the molars and canines of the lower jaw. The right handed persons had as many surfaces restored left as right and they did miss more elements left than right in the mouth. Also in the upper jaw they did miss more elements left than right. In addition, they had on the left side a higher DMFS score than on the right side in the mouth. Moreover, the right-handed persons were more convincing right-handed than the left-handed persons were left-handed. Discussion: The group left handed persons in this study was small (n = 15). This can be a reason why there are no significant differences for the left handed persons found. For example, there is shown that left handed persons had more often a higher average plaque score left than right on the first molars and canines. And the DMFS score of the left compared to the right and from the first quadrant compared to the second quadrant was left more frequently higher than the right for left-handers. However, both findings were not statistically significant. The difference in the number of carious surfaces between left and right in the mouth for left- and right handed persons could not be analyzed. In the research group of Zuidlaren was insufficient caries present. Conclusion: When looking at the differences in the mouth between the left and right side, it was found that the amount of plaque on the right side was significantly more than on the left and that there were not significant differences in the number of surfaces of untreated caries (D) and/or restorations (F) and missing elements (M). The total caries experience (DMFS) actually appeared to be higher on the left side of the mouth than on the right side. The preferred hand did affect the amount of plaque: right handed persons did statistically significantly brush better on the left than on the right side of the mouth and left handed persons did brush better on the right than on the left side of the mouth, but this last difference was not statistically significant. However, no correlation was found that plaque causes more problems in the areas where it is most prevalent.
| Item Type: | Thesis (Thesis) |
|---|---|
| Supervisor name: | Schuller, mevr. dr. A.A. |
| Faculty: | Medical Sciences |
| Date Deposited: | 25 Jun 2020 10:47 |
| Last Modified: | 25 Jun 2020 10:47 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/797 |
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