Abstract
Objective: The purpose of this study was to determine whether ‘chewing side preference’ (CSP) is correlated to ‘chewing side preference during the first chewing cycle’ (CSP1ºC) in the deciduous, mixed and permanent dentitions.Methods: Three-hundred subjects were divided in 3 groups: Group 1 – 100 children 3-5 years old, primary dentition; Group 2 – 100 children 6-12 years old, mixed dentition; Group 3 – 100 subjects 18-47 years old, permanent dentition. CSP was determined using a method developed by McDonnell et al. (2004). Subjects were given a piece of gum and the position of the chewing gum was recorded 7 times as right or left. Subjects were classified as ‘observed preferred chewing side’ (OPCS) when they performed 5/7, 6/7 or 7/7 strokes on the same side. OPCS corresponded to the CSP. CSP1ºC was determined using a method developed by Hoogmartens and Caubergh (1987). Subjects were given five pieces of gum and the position of the chewing gum at first chewing cycle was recorded as right or left. For each subject, an index (I) was performed. The Chi-square (X2) and phi correlation (r) tests were used to investigate signi?cant correlations between CSP and CSP1ºC. Results: There was a strong positive and significant correlation between CSP and CSP1ºC for primary dentition (p=0.000; r=0.82), for mixed dentition (p=0.000; r=0.81) and a very strong positive and significant correlation for permanent dentition (p=0.000; r=0.90). Conclusion: CSP can be significantly correlated to CSP1ºC for primary dentition, mixed dentition and permanent dentition, and these are strong positive relationships for primary and mixed dentitions and very strong positive relationship for permanent dentition.
Highlights
Several studies have been observed the prevalence of unilateral chewing in different populations [1,2,3,4,5,6,7,8]
A sample of 546 subjects was selected from a triage at the Department of Restorative Dentistry, from São José dos Campos School of Dentistry – UNESP according to the following inclusion criteria: both genders; stratification by age (3-5 years old - primary dentition; 6-12 years old - mixed dentition; adults aged ≥ 18 years old – permanent dentition); not having been submitting to previous orthodontic or functional jaw orthopedic treatment; good general health; without neurological disorders; subjects at the permanent dentition stage had to have ≥ 24 permanent teeth; children with primary dentition had to have ≥16 primary teeth; without removable prosthetic restorations in one or both jaws
26% had a Consistent preferred chewing side (CPCS) on the right; 31% had a Predominant preferred chewing side (PPCS) on the right; 57% had an observed preferred chewing side’ (OPCS) on the right and 25% on the left and 18% preferred to chew on both sides
Summary
Several studies have been observed the prevalence of unilateral chewing in different populations [1,2,3,4,5,6,7,8]. To assess the CSP, can be used the direct method by visual observation [2,4] and indirect methods by electronic programs, such as cinematography, kinetography and computerized electromyography [5,6,7,8,12]. The direct method consists in the visual observation of the side that the bolus is positioned. This is a simple test, practical, fast and without misinterpretation. This method has more accurate than the indirect methods to assess CSP [7,13]. Varela et al [7] noted that there were no significant differences between the direct method with chewing gum and indirect method of kinesiography analysis to determine the CSP. The null hypothesis tested was that the CSP was not associated with CSP1oC in primary, mixed and permanent dentitions
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
