Occurrence Of Denture Stomatitis Research Articles

Evaluation of flexural strength and microhardness in Vaccinium macrocarpon (cranberry)-added self-cure polymethyl methacrylate dental resin: An in vitro study.

Occurrence of denture stomatitis and prosthesis breakage are common problems faced by elderly people wearing removable dentures. To overcome this, several attempts are made to improve the denture material by addition of antimicrobials without compromising original properties. The aim of the study was to evaluate flexural strength and microhardness of self-cured polymethyl methacrylate (PMMA) denture base resin after addition of Vaccinium macrocarpon (commonly called as cranberry), extract as antimicrobial, at varying proportions. Experimental in vitro study. Frozen cranberry fruits were subjected to extraction process in the presence of aqueous solvents. Lyophilized extract was added in proportions of 0, 0.5, 1.0, 1.5, and 2.0 dry wt/wt % into polymer of self-cure PMMA denture base resin. Based on cranberry inclusion, the study comprised one control (0%) and four test groups (0.5%-2%) with total of 100 samples. A three-point bending test for flexural strength was done for fifty study samples (n = 10). Surface of fractured samples was analyzed using a scanning electron microscope (SEM). Microhardness was determined using Vickers hardness test. One-way statistical ANOVA test was done to find the difference between groups, followed by Tukey's post hoc test for multiple pairwise comparison. Flexural strength ranged from 66.80 to 69.28 MPa, and a statistically insignificant difference was observed between groups (P > 0.05). SEM evaluation showed uniformly dispersed strands of cranberry extract in PMMA matrix. With higher concentration, less voids were seen. Vickers microhardness value significantly decreased from 15.96 in the control group to 14.57 with 2% cranberry addition (P < 0.05). Incorporation of cranberry extract into self-cure PMMA denture base resin, up to 2 dry wt %, did not decline the flexural strength. However, there was a significant decrease in Vickers microhardness values when compared against the control group (0% cranberry inclusion).

Local Factors for Development of Denture Stomatitis and Strategies for Their Management

One of the most frequent diseases of oral cavity in elderly people that use removable dentures is denture stomatitis. Large set of local factors predispose towards the occurrence of denture stomatitis – quantity and Ph of saliva, violations of oral mucosa integrity, surface characteristics of the denture base materials, the maintenance of dentures and oral cavity hygiene, the period of using one and the same dentures, etc. Development of denture stomatitis can deteriorate not only the oral health but general health status of patients, hence their quality of life. This predefines problem’s great social significance. The purpose of this review was to analyse the local factors that make impact on development of denture stomatitis in complete dentures wearers, the contemporary prevention strategies and the role of the patients in their realization. Successful prevention of the disease could be achieved with the application of complex approach that includes evaluation of all the general and local factors and implementation of multi-component strategy for the management of their influence. The active collaboration with patient is essential for successful prevention of the denture stomatitis. Keywords: denture stomatitis; local factors; strategies for prevention

EFFECT OF GINGER EXTRACT (ZINGIBER OFCINALE ROSC.) ON CANDIDA ALBICANS ON HEAT CURED ACRYLIC RESIN PLATE

Background: Denture bases that are often used in dentistry are heat cured polymethyl methacrylate acrylic resin or heat polymerized acrylic resin. Acrylic resin has a weakness, namely the surface of the acrylic resin that can trigger the growth of bacteria and Candida albicans. Candida albicans has an important role in the occurrence of denture stomatitis. Epidemiological studies show the prevalence of denture stomatitis is quite high, ranging from 30%-50% in denture users. Innovation is needed to inhibit the growth of Candida albicans on acrylic resin, one of which is the use of ginger extract. Ginger can be antifungal because of the content of phenols and essential oils.To determine the effect of ginger extract (Zingiber ofcinale Rosc.) on Candida albicans on heat cured acrylic resin. Methods: This research design was a post test only control group design with a total sample of 24 samples. There was 3 treatment groups and 1 control group. Statistical test used One-way ANOVA Welch with post hoc Games-Howell test. Results: The results showed that there was a significant effect of 25% and 50% ginger extract on Candida albicans on heat cured acrylic resin. The Shapiro-Wilk test got normal results and the homogeneity test got inhomogeneous results. The analytic test conducted used One-way ANOVA Welch with post hoc Games-Howell and the result showed a significant differences in the 4 test groups Conclusion: There was a significant effect of 25% and 50% ginger extract in inhibiting Candida albicans on heat cured acrylic resin with an average fungal count of 2 and 1.

THE STUDY OF ETIOLOGICAL FACTORS ASSOCIATED WITH DENTURE STOMATITIS IN AN INDIAN POPULATION

Aim: The aim of this study is to find out the possible etiological factors for denture stomatitis (DS) in completely edentulous denture wearing patients by cross-sectional study. Material and Methods: Population for this cross-sectional study consisted of 60 completely edentulous denture wearing patients residing in Ahmedabad, India. Data collection was done by questionnaire, oral examination and denture evaluation. All the data were analyzed using the software SPSS. Qualitative data were analyzed by Chi-square test and quantative data were analyzed by student t test. Results: This study showed 28% prevalence of denture stomatitis (17 out of 60 examined patients) in this study population. Many factors can be associated with DS, but present study showed significant correlation between Continuous denture wearing, Age of denture, Denture hygiene, Candidiasis, Lack of denture stability, Decrease VDO, High sugar intake, Hypo salivation, Low salivary pH. Conclusion: Apart from infection, particularly with C.albicans, denture related factors can also cause denture stomatitis and these prosthetic factors appear to play mainly a traumatic role in the occurrence of DS. Patient should be motivated to practice proper denture wearing habits and maintenance of oral hygiene and follow a program of recall and maintenance for continuous monitoring of dentures and oral tissues. Keywords: Denture stomatitis, Denture hygiene, Retention, Stability, Vertical dimension.

EVALUATION OF DENTURE-RELATED FACTORS PREDISPOSING TO DENTURE STOMATITIS IN A LEBANESE POPULATION.

Background:Denture stomatitis is a common fungal oral infection of multifactorial etiology. Denture-related factors such as denture’s age, hygiene, night wearing and colonization by Candida albicans are known to predispose to denture stomatitis. The aim of this study was to evaluate these factors and their relationship with the occurrence of denture stomatitis in a Lebanese population.Material and methods:Sixty patients (40 women, 20 men; age range 40-80 years) showing clinical evidence of denture-related stomatitis were selected for this study. Swab samples from the palate and the palatal surfaces of the upper dentures of these patients were collected and examined mycologically. Denture’s age, hygiene, night wearing and colonization by Candida albicans were evaluated and analyzed statistically.Results:The statistical analysis showed a significant role for denture’s hygiene, night wearing, and colonization by Candida albicans in the installation of the denture stomatitis. Patient’s gender and age, as well as the denture’s age, were not significant predictors of the disease.Conclusion:In a sample of Lebanese population, poor denture hygiene, continuous denture use, and Candida denture colonization are important etiological factors that contribute to denture stomatitis.

Salivary cytokine profile in elders with Candida‐related denture stomatitis

This study investigated risk factors of denture stomatitis, and the levels of cytokines in the saliva of elderly Candida-related denture stomatitis participants compared with adult individuals. The occurrence of denture stomatitis in 128 patients with upper removable dentures was clinically examined. Participants were divided into two age groups as adult and elder. Risk factors associated with denture stomatitis were evaluated by questionnaire and oral and dental prosthesis examination. The quality of dentures was evaluated by direct examination. Palatal mucosa was swabbed for Candida carriage investigation, and whole unstimulated saliva was collected for cytokine detection. Salivary cytokines (interleukin (IL)-6, IL-8, IL-10, IL-17, intercellular adhesion molecule (ICAM)-1 and tumour necrosis factor (TNF)-α) were examined by enzyme-linked immunosorbent assay (ELISA). The associations between the occurrence of denture stomatitis and either the quality of dentures or Candida isolation on palatal mucosa were significant. However, differences in the levels of salivary IL-6, IL-8, IL-10, IL-17, ICAM-1 and TNF-α between the denture wearers with and without denture stomatitis were undetectable. Adult and elderly Candida-related denture stomatitis patients also showed a similar level of salivary IL-6, IL-8, IL-10, IL-17, ICAM-1 and TNF-α. No correlation between the presence of denture stomatitis in the elder and the quantity of Candida infection was found. No association was found between the occurrence of Candida-related denture stomatitis and the concentrations of salivary IL-6, IL-8, IL-10, IL-17, ICAM-1 and TNF-α, regardless of age.

義歯性口内炎の臨床的研究 第２報 義歯の取り扱いと義歯性口内炎との関係

A previous study suggested that denture plaque played an etiologic role in denture stomatitis. In daily practice, it is important to instruct denture wearers about denture plaque control. In this study, the major areas of investigation were the degree of denture stomatitis and denture plaque, denture hygiene habits, wearing habits and age of present denture. 643 patients wearing dentures (1981-1988) were selected, from 47 to 91 years old. The following results were obtained. 1. About 50 percent of the 643 patients used brush for cleaning their dentures. The number of people wearing dentures during sleep was fewer than those who preferred removal of dentures during sleep. 2. Soaking dentures in denture cleanser reduced the degree of denture stomatitis and denture plaque. 3. The patients wearing dentures during sleep showed much more occurrence of denture stomatitis than those who had not that habit. 4. Denture stomatitis occurred frequently with increasing the age of the present denture. The present results indicate that the occurrence of denture stomatitis is closely related to the quality of the maintenance of denture.

義歯性口内炎の臨床的研究 Ｉ デンチャープラークと義歯性口内炎との関係

Denture stomatitis is a very frequent complication of the denture wearers. In this study, the relation between denture plaque and denture stomatitis was evaluated by a simplified culture (STOMASTAT). 583 patients wearing dentures (1981-1987) were selected, from 47 to 91 years old. The following results were obtained. 1. Degree of denture plaque in 583 patients was severe, moderate, and no detection: 30, 35 and 35%, respectively. 2. Grade of denture stomatitis in 583 patients was severe, moderate, and no symptom: 24, 36 and 40%, respectively. In this survey, the occurrence of denture stomatitis was about 60%. 3. The good correlation between degree of denture plaque and grade of denture stomatitis was recognized in this study. The present results suggest that denture plaque plays an etiologic role in denture stomatitis and, in daily practice, it is important to instruct denture plaque control for denture wearers.