Evaluations of masticatory performance of complete denture wearers using color-changeable chewing gum and other evaluating methods (original) (raw)
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Journal of oral rehabilitation, 2018
The aim of this study was to test the reliability of a method to measure the masticatory performance of complete denture wearers employing a colour-mixing ability test and assessment by visual and electronic colourimetric analysis. A sample of 75 subjects was selected from patients who received new conventional complete dentures. Masticatory tests were performed using a two-colour chewing gum that was masticated for 5, 10, 20, 30 and 50 chewing cycles, performed in a random order. The mixing level of the two colours of the chewed gum was assessed visually by two independent raters based on a 5-point ordinal scale. The specimens were flattened into a 1-mm-width wafer, scanned and saved as a two-sided digital image. Each pair of images was submitted to an electronic colourimetric analysis to assess the level of colour mixture, measured by the circular variance of hue (VOH). Overall inter- and intra-rater agreements in visual analysis were 64% and 68%, respectively (almost 99% of score...
Journal of International Dental and Medical Research, 2019
Tooth loss decreases stomatognathic system function, including masticatory performance. Dental prostheses restore masticatory performance, which affects stomatognathic function and general health. We analyzed mastication performance between removable partial denture (RPD) wearers and dentate subjects using gummy jelly and color-changeable chewing gum and discovered correlation between both methods and factors affecting masticatory performance. We measured masticatory performance and factors affecting it in 40 RPD wearers and 40 dentate subjects using color-changeable chewing gum (30, 45, and 60 strokes) and gummy jelly (10, 20, and 30 strokes). RPD wearers were classified using the Eichner index. Correlations were compared statistically. Masticatory performance was significantly higher in dentate subject than in RPD wearers using both chewing materials (P < 0.05). RPD wearers showed a strong correlation between color-changeable chewing gum 60 strokes and gummy jelly 30 strokes an...
Properties of a color-changeable chewing gum used to evaluate masticatory performance
Journal of prosthodontic research, 2014
To clarify the basic properties of a color-changeable chewing gum to determine its applicability to evaluations of masticatory performance under different types of dental status. Ten participants with natural dentition aged 26-30 years chewed gum that changes color during several chewing strokes over five repetitions. Changes in color were assessed using a colorimeter, and then L*, a*, and b* values in the CIELAB color system were quantified. Relationships between chewing progression and color changes were assessed using regression analysis and the reliability of color changes was assessed using intraclass correlation coefficients. We then measured 42 dentate participants (age, 22-31 years) and 47 complete denture wearers (age, 44-90 years) to determine the detectability of masticatory performance under two types of dental status. Regression between the number of chewing strokes and the difference between two colors was non-linear. The intraclass correlation coefficients were highes...
2017
Satisfaction with a complete denture treatment in some patients is related to comfort, the absence of pain and the ability to masticate, while denture aesthetics and retention also seem to be important. The success of prosthodontic treatment, however, is evaluated differently by dentists and patients. Therefore, using a valid and reliable multidimensional self -assessment instrument to evaluate patients’ satisfaction with their complete denture is needed, as well as a clinical examination of the complete denture, so that we can see the factors affecting treatment success. The purpose of this study was to analyze the relationship between patients’ satisfaction toward their complete denture (evaluated using the Indonesian version of the PDA questionnaire) and masticatory performances (evaluated using color-changeable chewing gum), age, sex, education level, denture experience and the duration of their recent complete denture. A total of 101 subjects (50 men, 51 women) aged 45 years an...
Journal of medical and dental sciences, 2014
In the present study, we developed a novel color scale for visual assessment, conforming to theoretical color changes of a gum, to evaluate masticatoryperformance; moreover, we investigated the reliability and validity of this evaluation method using the color scale. Ten participants (aged 26.30 years) with natural dentition chewed the gum at several chewing strokes. Changes in color were measured using a colorimeter, and then, linearregression expressions that represented changes in gum color were derived. The color scale was developed using these regression expressions. Thirty-two chewed gums were evaluated using colorimeter and were assessed three times using the color scale by six dentists aged 25.27 (mean, 25.8) years, six preclinical dental students aged 21.23 (mean, 22.2) years, and six elderly individuals aged 68.84 (mean, 74.0) years. The intrarater and interrater reliability of evaluations was assessed using intraclass correlation coefficients. Validity of the method compa...
Journal of prosthodontic research, 2010
The objective of this study was to confirm the validity of a Self-Implementable method to evaluate masticatory performance using a newly developed color scale and color-changeable chewing gum. We developed a dedicated color scale that enables anyone to easily check the color of the chewing gum instead of using specialist equipment. To examine the reliability of evaluating the masticatory performance by the subjects themselves, three groups of six subjects were recruited: a group of dentists, a group of adults and a group of elderly adults were asked to check the colors of the chewed samples using the color scale. The correlation between the use of the color scale and the use of a colorimeter to determine the color of the chewing gum was studied to confirm the validity of the color scale. To assess the reliability, intraclass correlation coefficients (ICCs) were determined. A strong correlation was found between the a* value measured by the colorimeter and the mean scores from the co...
Journal of Oral Rehabilitation, 2019
The aim of this study was to assess whether differences in inter-individual clinical and prosthodontic variables affect masticatory performance (MP) of edentulous subjects who received new complete dentures. Materials and methods: There were 204 edentulous participants who received new maxillary and mandibular complete dentures between October 2014 and March 2018 at a university clinic. MP was measured by a mixing ability test with a two-coloured chewing gum for 20 and 50 chewing cycles. The outcome variable was the degree of colour mixing of the chewed gum, expressed by the variation of hue (VOH), measured by electronic colourimetric analysis. Explanatory variables included gender and age, quality of the dentures, classification of edentulous ridges and prognostic features, time since the insertion of the new dentures and patient-reported outcomes related to complete denture treatment. Bivariate correlation tests, multiple linear regression and a linear mixed model were used for data analysis. Results: Mean VOH values were 0.57 (±0.13) and 0.43 (±0.16) for 20 and 50 chewing cycles, respectively. Mixing ability was higher in females than males for 20 (p=0.036) and 50 (p=0.006) chewing cycles. No effects on the patient-reported outcome measures were observed. The time since denture delivery, gender, age and Prosthodontic Diagnostic Index (PDI) score were independently associated with masticatory performance at 20 and/or 50 chewing cycles. Overall masticatory performance tested by the linear mixed-effect model confirmed that VOH value was negatively influenced by male gender, older age and shorter time since denture delivery. Conclusion: Masticatory performance seems to be improved with the continuous use of newly inserted dentures and negatively influenced by advanced age.
The objective of this study was to present a systematized review of different methods used to evaluate the masticatory efficiency in conventional complete denture wearers. A survey was conducted in the databases PubMed, Scopus, and Cochrane, seeking scientific articles according to the previously selected terms: "Masticatory performance", "Masticatory efficiency" and "Chewing ability complete denture". Moreover, complementary studies have been carried out with library manual search/databases, which included studies related to different ways to assess masticatory efficiency, specifically as it related to conventional complete denture wearers. Forty three papers were selected to be used in the present review. Despite the wide variety of methodologies in the literature, the sieves method is currently considered the gold standard method to evaluation of conventional complete denture wearers masticatory efficiency, since it is the simplest, does not depend o...
The International Journal of Oral & Maxillofacial Implants, 2020
C ompensating for tooth loss in fully edentulous patients using complete dentures provides adequate physical, functional, and psychologic rehabilitation. Restoring the masticatory function is critical for preserving the patient's health, as appropriate masticatory function is crucial for a healthy nutritional status. 1 Good masticatory performance is related to dental conditions. Individuals with complete natural dentition show higher masticatory performance rates, while edentulous individuals show minimal performance. 2 However, according to the type of restoration and the type of rehabilitation procedure, there are intermediate rates between the two extremes. The All-on-4 treatment concept (Nobel Biocare) has gained popularity in the rehabilitation of full-arch cases. Recently, it was reported as a modern technique in fixed complete denture rehabilitation on implants in a study by Malo et al. 3 All-on-4 implant-supported fixed complete dentures were initially used to restore the excessively resorbed mandible, where the mental foramen was at the same level as the crestal bone. Posterior implants were tilted backward toward the mental foramina with a mesial angle of 30 degrees. 4 Besides the tilted implants, the All-on-4 concept consists of having a shortened dental arch, with 10 or 12 teeth that may be terminated on the first molar site. During chewing, food is ground and reduced in size, while saliva moistens and binds it into a bolus that can be easily swallowed. When the food particles meet the individual criteria for swallowing, they transit through the pharynx. This is referred to as the swallowing threshold. 5 The quality of chewing can be evaluated in terms of "masticatory performance, " which is defined as the percentage of particle size distribution of food when chewed for a given number of strokes. 2 It is affected by several factors, namely, the number of teeth in functional occlusion, 6 the maximal occlusal force, and denture wearing. 7 The individual's capacity to grind and pulverize a test food after a fixed number of chewing cycles determines its masticatory efficiency. 8
The Journal of prosthetic dentistry, 2018
Masticatory performance is an important and complex multifactorial process in clinical practice. An exploration of the relationships and effects of the associated factors is lacking. This clinical survey compared masticatory efficiency (mixing index) with perceived masticatory ability (masticatory index) among complete denture wearers and sought to clarify the relationship between these indices and other factors. The study consisted of 58 complete denture wearers (37 men, 21 women) ranging between 37 and 80 years of age. Participants were interviewed and examined clinically. The perceived masticatory ability of participants regarding 15 types of Sudanese food was evaluated. The degree of mixing of a 2-colored chewing gum was used to measure masticatory efficiency. Multiple regression and structural equation modeling analyses were used to assess the association between both indices and other related factors. Most of the complete denture wearers could eat soft foods easily but found i...