Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 8.229
Filtrar
1.
Int J Prosthodont ; 34(1): 7-12, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33570514

RESUMEN

PURPOSE: To determine whether the use of implant-supported overdentures (IODs) with different attachments influences the Mini Nutritional Assessment (MNA) and Geriatric Oral Health Assessment Index (GOHAI) scores in edentulous patients > 65 years of age. MATERIALS AND METHODS: The MNA and GOHAI were administered to 54 edentulous patients > 65 years of age (mean age = 68.35 ± 4.1 years) before treatment (A) and 6 months after treatment (B): 10 with maxillary + mandibular conventional complete dentures (CDs); 10 with a maxillary conventional CD + mandibular magnetic-retained IOD; 12 with a maxillary conventional CD + mandibular ball-retained IOD; 12 with a maxillary conventional CD + mandibular Locator-retained IOD; and 10 with a maxillary conventional CD + mandibular bar-retained IOD. Statistical differences between treatment types were evaluated using one-way analysis of variance and paired-sample t tests. The correlation between MNA and GOHAI scores was determined using Pearson correlation analysis (α = .05). RESULTS: The difference between mean GOHAI-A and GOHAI-B scores was statistically significant for each type of denture (P < .005). The difference between the mean MNA-A and MNA-B scores was statistically significant for all types of denture except for conventional CDs (P < .05). There was a statistically significant positive correlation between MNA and GOHAI scores (P < .01). CONCLUSION: Regardless of the type of denture used, treatment of edentulous geriatric patients is important for improving nutritional status and self-rated oral health.


Asunto(s)
Implantes Dentales , Calidad de Vida , Anciano , Preescolar , Prótesis Dental de Soporte Implantado , Retención de Dentadura , Dentadura Completa , Dentadura Completa Inferior , Prótesis de Recubrimiento , Humanos , Estado Nutricional , Satisfacción del Paciente
2.
Int J Prosthodont ; 34: s85-s92, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33571328

RESUMEN

PURPOSE: To evaluate the current literature and provide clinical recommendations related to the number of implants, implant characteristics, loading protocols, survival rates, biologic and mechanical complications, patient satisfaction, and financial considerations for mandibular implant-supported full-arch prostheses. MATERIALS AND METHODS: A PubMed/MEDLINE search for literature published between January 1, 1980 and February 8, 2019, was performed for systematic reviews on this topic. The PICO question was: In mandibular fully edentulous patients treated with implant full-arch prostheses, is there any difference between fixed and removable implant prostheses in terms of implant and prosthesis survival rates? Only systematic reviews with or without meta-analyses were included. The findings varied based on the type of implant full-arch prosthesis. RESULTS: High survival rates for implants and prostheses have been reported for fixed and removable implant full-arch prostheses in the mandible. Immediate loading procedures present with high survival rates for both fixed and removable prostheses. There are differences in the number of implants, implant characteristics, complications, and financial implications between these two types of prostheses, which clinicians need to account for as part of the treatment planning process. CONCLUSION: Implant-supported overdentures and implant-supported fixed complete dentures represent clinically successful treatment approaches. In cases where both treatment options are indicated, patient expectations and cost should be the determining factors for selecting a treatment modality.


Asunto(s)
Implantes Dentales , Prótesis Dental de Soporte Implantado , Dentadura Completa , Prótesis de Recubrimiento , Estudios de Seguimiento , Humanos , Mandíbula/cirugía , Resultado del Tratamiento
3.
Oral Health Prev Dent ; 19(1): 107-113, 2021 Jan 07.
Artículo en Inglés | MEDLINE | ID: mdl-33600087

RESUMEN

PURPOSE: To identify the oral hygiene habits and denture hygiene status (e.g. sociodemographic characteristics, general health status) of complete denture wearers in Central Transylvania, Romania. MATERIALS AND METHODS: This descriptive cross-sectional study was based on an original self-administered questionnaire. It included 162 patients who experienced complete tooth loss in one or both jaws and wore polymethylmethacrylate acrylic (PMMA) complete dentures. The exclusion criteria were partial dentures, dentures fabricated from materials other than PMMA, and the patient being unable to provide all the required information. The questionnaire solicited information regarding sociodemographic status, general health and oral hygiene-related habits. The dentures were clinically evaluated in order to assess denture hygiene. RESULTS: Most respondents were completely edentulous (38.0% wore maxillary dentures, 10.6% mandibular dentures, while 51.6% had both), with an average age above 60, all wearing dentures. The clinical evaluation of the dentures revealed that 12.3% exhibited optimal hygiene status, 40.1% good, 32.7% unsatisfactory and 14.8% bad, with more women than men having well-cleaned dentures. Cleaning frequency was found to be 2-3 times per day for 54.3% of the patients, with 93.2% of the subjects using a toothbrush and 76.5% using toothpaste. Most of the participants felt at ease with the cleaning procedures. Only 30.9% of the respondents reported denture removal overnight. The results showed that the hygiene of the patients' dentures was not correlated with their answers regarding oral hygiene habits. CONCLUSIONS: Competent oral health and denture hygiene promotion should be established, especially regarding nocturnal denture removal, denture hygiene methods, instruments and cleaning frequency.


Asunto(s)
Dentadura Completa , Higiene Bucal , Estudios Transversales , Femenino , Hábitos , Humanos , Masculino , Rumanía
4.
Artículo en Inglés | MEDLINE | ID: mdl-33374152

RESUMEN

This study examined the prevalence of self-perceived chewing discomfort depending on the type of dental prosthesis used in South Korean adults. The subjects were 12,802 people over 20 years of age who participated in a health interview and dental examination. Chewing discomfort was examined using a self-assessed report with a structured questionnaire. Using multivariable logistic regression analysis, adjusted odds ratios were evaluated along with their 95% confidence intervals (α = 0.05). After adjusting for covariates, including age, gender, smoking, drinking, hypertension, diabetes, body mass index, education, income, and toothbrushing frequency, the odds ratios (95% confidence intervals) for chewing discomfort in groups without a dental prosthesis, with fixed dental prostheses, with removable partial dentures, and with removable complete dentures were 1 (reference), 1.363 (1.213-1.532), 2.275 (1.879-2.753), and 2.483 (1.929-3.197), respectively. The association between the prevalence of chewing discomfort and the type of dental prosthesis used was statistically significant even after adjusting for various confounders (p < 0.0001). The type of dental prosthesis was related to chewing discomfort among South Korean adults.


Asunto(s)
Dentadura Completa , Dentadura Parcial Removible , Masticación , Dolor/etiología , Adulto , Estudios Transversales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Salud Bucal , República de Corea
5.
J Forensic Odontostomatol ; 2(38): 57-62, 2020 Sep 30.
Artículo en Inglés | MEDLINE | ID: mdl-33174538

RESUMEN

The study of palatal rugae is shown to be scientifically valid to human identification due to the unique number and style of the palatal ridges. Dentures provide an array of data and specifics that allow for the individualization of their wearers. This article describes the identification of edentulous, skeletonized remains through the analysis of the palatal rugae printed on the complete upper denture and subsequent comparison with the palatal rugae of an old complete denture of an unknown missing person. The analyses focus on the form, classification, location, and size of the palatal rugae which, in conjunction with the information obtained from the anthropological examination, resulted in a positive identification of the cadaver. This method has a significant impact on the identification process, particularly when other identification methodologies and techniques cannot be implemented. This case report highlights the importance of palatal rugae in human identification in cases of edentulous cadavers.


Asunto(s)
Antropología Forense , Paladar (Hueso) , Dentadura Completa , Dentadura Completa Superior , Humanos , Mucosa Bucal
6.
Hua Xi Kou Qiang Yi Xue Za Zhi ; 38(4): 404-409, 2020 Aug 01.
Artículo en Chino | MEDLINE | ID: mdl-32865359

RESUMEN

OBJECTIVE: To observe the changes of forward displacement of maxillary complete denture during centric occlusion, three different methods were used to record the changes of vertical overlap and the comfort level of patients before and after the selective grinding of the three dentures made according to maxillo-mandibular horizontal relationship record. METHODS: Twelve edentulous patients with normal stomatognathic system were recruited in this study. Three types of complete dentures for these 12 edentulous patients were made according to their different maxilla-mandibular horizontal relationship record methods. The amount of displacement of the maxillary complete denture, the vertical overlap of the anterior teeth as well as patient comfort level were recorded before and after selective grinding. Statistical analysis was performed using the SPSS 17.0 software package. RESULTS: Before selective grinding, the amount of displacement of denture A was significantly larger than those of dentures B and C (P<0.05). After selective grinding, there was no statistical difference among the three dentures (P>0.05). During selective grinding, the vertical overlap variation of denture A was significantly greater than those of dentures B and C (P<0.05). Before selective grinding, the comfort level of the denture A was the lowest (P<0.05), and no statistical difference was found between dentures B and C (P>0.05). After selective grinding, no statistical difference was found among the three dentures (P>0.05). CONCLUSIONS: Among the complete dentures with anatomical teeth, the dentures whose horizontal relationship was recorded at 1 mm before the apex of the Gothic arch apex and with checkbite are more in line with clinical repair requirements. Complete dentures whose horizontal relationship was recorded at the apex of Gothic arch need to be adjusted with selective grinding to meet the clinical restoration requirements.


Asunto(s)
Dentadura Completa , Boca Edéntula , Oclusión Dental Céntrica , Humanos , Mandíbula , Maxilar
7.
Braz Dent J ; 31(4): 399-403, 2020 Sep 04.
Artículo en Inglés | MEDLINE | ID: mdl-32901716

RESUMEN

This cross-sectional observational study with 24 patients evaluated differences in bite force (BF) and masticatory performance (MP) between conventional complete denture (CCD) and implant mandibular overdenture (IMO) users and the correlation between these variables. The BF test was performed bilaterally with an occlusal force device. During the MP test, patients were asked to chew Optocal particles for 40 cycles. The Shapiro Wilk test was employed to verify the normality of the data, the student t test to identify differences between groups, and Pearson's correlation to investigate interrelationships between variables. A multiple linear regression was subsequently performed via the stepwise method. P values ≤0.05 were considered statistically significant. Unlike IMO users, CCD users presented a significant difference (25.6%) in BF between the dominant and non-dominant chewing side (p=0.04). IMO users presented significantly higher BF (p=0.01) without presenting a dominant side (p=0.38), and also performed significantly better for the following MP parameters: MPX50 values decreased by 27.25% in IMO users (p=0.01), MPB decreased by 48.38% (p=0.01), and ME 5.6 decreased by 53.25% (p=0.02), while ME2.8 increased by 151.57% (p=0.01). The BF and MPX50 in the IMO wearers group were negatively correlated (-0.57; p=0.05); this correlation coefficient was the only parameter included in the multivariate regression model. IMO users have higher BF and better masticatory performance than CCD users, especially in terms of chewed particles size reduction. MP is correlated with a higher BF in IMO users through better particle trituration.


Asunto(s)
Fuerza de la Mordida , Prótesis de Recubrimiento , Estudios Transversales , Dentadura Completa , Humanos , Mandíbula
8.
Prim Dent J ; 9(3): 29-33, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32940588

RESUMEN

Whilst increasing numbers of older people retain natural teeth, a sizable proportion of older people are still edentate. Replacement of missing teeth is important for function, aesthetics and to facilitate social interactions. The process of providing oral rehabilitation for edentate older adults can be challenging, but clinicians can utilise a number of treatment options including removable or implant retained prostheses. In this article, complete denture construction will be described using both conventional and copy denture techniques. Recent innovations in the process for constructing complete dentures using computer aided design and manufacturing (CAD-CAM) techniques will also be discussed. Dental implants can be used to help retain removable complete prostheses for edentate patients and the use of implant-retained overdentures is presented as a treatment alternative.


Asunto(s)
Prótesis Dental de Soporte Implantado , Prótesis de Recubrimiento , Anciano , Anciano de 80 o más Años , Diseño Asistido por Computadora , Dentadura Completa , Humanos
9.
Quintessence Int ; 51(10): 838-843, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32954391

RESUMEN

The proposed denture replication method shows a predictable workflow for fabricating complete dentures for patients with existing dentures. The replication technique is a method of fabricating new removable complete dentures utilizing the existing prosthesis as the foundation for a new denture. The technique has some advantages such as allowing the clinician to copy the tooth shape and contours of the existing prosthesis while modifying borders and intaglio surfaces. The denture replication method links proven methods of obtaining functional impressions using soft reline materials to a straightforward digital process. Utilizing the new "copy-denture" feature in the 3Shape software, it is possible to significantly reduce the number of appointments and laboratory labor involved in denture fabrication. The denture replication method protocol is increasing efficiency by reducing the amount of clinical procedures and visits, resulting in decreased treatment time and costs while providing a satisfactory clinical solution.


Asunto(s)
Implantes Dentales , Diseño de Dentadura , Técnica de Impresión Dental , Dentadura Completa , Dentadura Parcial , Humanos
10.
Evid Based Dent ; 21(3): 89, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32978535

RESUMEN

Data sources Data was collected utilising Medline (OVID interface), Google Scholar and Cochrane Library. Systematic reviews with/without meta-analysis were selected which included patient satisfaction and oral health-related quality of life as outcome measures. The literature search performed included systematic reviews with publication dates ranging from 1946 to 2018. PROSPERO was also used to incorporate systematic reviews that had been completed after the last search in August 2018.Study selection Studies were selected using the PICO model, selecting systematic reviews analysing adult edentulous patients with conventional complete dentures and/or implant-retained overdentures. The systematic reviews chosen assessed satisfaction and oral health-related quality of life, while comparing results to adult edentulous patients with no replacement teeth or prosthesis.Data extraction and synthesis All of the articles located from the database searches were uploaded to reference management software. Articles were screened independently by two authors to reduce bias and to assess the articles against the predetermined inclusion criteria. The EndNote filter Service was applied to avoid duplication of articles. Guidance from the Centre for Reviews and Dissemination (University of York) was incorporated to present data narratively, with text and tables. Eight reviews were included in data synthesis.Results Of the eight reviews included, six were systematic reviews without meta-analysis, one systematic review with meta-analysis was included and one was meta-analysis. Conclusions The results of this systematic review highlight the greater benefits of implant retained overdentures compared with conventional complete dentures when assessing patient satisfaction and oral health-related quality of life. The superiority of implant retained overdentures is most evident when patients cannot tolerate conventional complete dentures. However, consideration most be given to the adaptive capabilities of patients and the financial implications of implant-retained overdentures.


Asunto(s)
Implantes Dentales , Prótesis de Recubrimiento , Adulto , Prótesis Dental de Soporte Implantado , Dentadura Completa , Humanos , Salud Bucal , Satisfacción del Paciente , Satisfacción Personal , Atención Primaria de Salud , Calidad de Vida
11.
Beijing Da Xue Xue Bao Yi Xue Ban ; 52(4): 762-770, 2020 Aug 18.
Artículo en Chino | MEDLINE | ID: mdl-32773816

RESUMEN

OBJECTIVE: To compare the clinical efficacy of a kind of complete dentures fabricated using computer aided design/computer aided manufacturing (CAD/CAM) workflow with that of the complete denture fabricated using conventional workflow. METHODS: Twenty edentulous patients were included in this prospective, single-blind, self-controlled clinical trial. Two pairs of complete dentures were fabricated for each participant: one using the functional suitable denture (FSD) system with CAD/CAM, and the other using conventional fabrication workflow. In the final delivery appointment, the conventional dentures worn by the participant for 3 months at first. Then the participant swapped to wear digital denture for another 3 months. The patients' satisfaction and oral health related quality of life (OHRQoL) were measured using the visual analogue scale (VAS) and oral health impact profile (OHIP-20E) at baseline, 2 weeks, 1 month, 2 months, and 3 months following denture delivery. In addition, the masticatory efficiency of each pair of dentures was measured after three months adaptation period for each type of dentures. RESULTS: The VAS scores of the twenty patients in FSD denture group on general satisfaction, ease of cleaning, ability to speak, esthetics, stability and oral health status on these six domains were higher than that of conventional denture group 3 months after delivery. While the VAS cores in FSD denture group on comfort, ability to chew and ability to chew up were the same as those of conventional denture group. But there was no significant difference (P>0.05). The VAS score on each domain in FSD denture group was higher than that of conventional denture group 3 months after delivery, three domains of which reached statistical significance (P < 0.05), involving functional limitation, psychological discomfort and total. The masticatory performance of the FSD denture (1.20±0.54) was slightly higher than that for the conventional denture (1.16±0.53), but the difference did not reach statistical significance (P=0.691). CONCLUSIONS: The clinical efficacy of the FSD complete denture is comparable to that of the conventional complete denture. As for patient satisfaction and oral health related quality of life, FSD dentures received comparable scores as conventional complete dentures did.


Asunto(s)
Dentadura Completa , Calidad de Vida , Humanos , Satisfacción del Paciente , Estudios Prospectivos , Método Simple Ciego , Resultado del Tratamiento
12.
J Am Dent Assoc ; 151(10): e95, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32826017
15.
Int. j. morphol ; 38(4): 983-989, Aug. 2020. tab, graf
Artículo en Español | LILACS | ID: biblio-1124886

RESUMEN

Las articulaciones temporomandibulares y la musculatura asociada, permiten que la mandíbula se desplace en los tres planos del espacio (sagital, frontal y horizontal), de esta forma la mandíbula puede realizar movimientos mandibulares complejos. Hace varias décadas que los movimientos bordeantes mandibulares son estudiados, sin embargo, en un principio los estudios se realizaban en dos dimensiones (2D). En la actualidad, gracias al articulógrafo electromagnético (EMA) 3D es posible realizar el estudio de la cinemática mandibular en tres dimensiones (3D). El objetivo del siguiente estudio es analizar los movimientos mandibulares bordeantes (sagital, frontal y horizontal), por medio de la articulografía electromagnética 3D. En el estudio, participaron 11 personas de 31,9 ± 5,7 años en promedio (mujeres 30,2 ± 2,9 y hombres 34,0 ± 7,8) completamente dentados de primer molar a primer molar, sin trastornos temporomandibulares ni tratamiento previo de ortodoncia. Los archivos fueron procesados mediante scripts, desarrolladas en MATLAB®. Entre los resultados más relevantes, se encontró diferencia estadística entre hombres y mujeres en relación al área Frontal del polígono de Posselt, y los resultados del área del polígono sagital de todos los participantes, fue mayor que en estudios previos.


The temporomandibular joints and associated muscles allow the mandible to move in the three planes (sagittal, frontal and horizontal), in this way the jaw can perform complex mandibular movements. For several decades, mandibular border movements have been studied. However, studies were initially carried out in two dimensions (2D). At the present time, it is possible to analyze mandibular kinematics in three dimensions (3D), with the 3D electromagnetic articulograph (EMA). The objective of the study is to evaluate the mandibular border movements (sagittal, frontal and horizontal), using 3D electromagnetic articulation. In this analysis, 11 subjects 31.9 ± 5.7 years of age on average, participated (women 30.2 ± 2.9 and men 34.0 ± 7.8) completely dentate patients, from first to first molar, with no temporomandibular disorders or orthodontic pretreatment. Files were processed using scripts, developed in MATLAB®. Among the most relevant results, a statistical difference was found between men and women in relation to the Frontal area of Posselt polygon, and results of the sagittal polygon area of all the participants were greater than those reported in previous studies.


Asunto(s)
Humanos , Masculino , Femenino , Adulto , Dentadura Completa , Mandíbula/diagnóstico por imagen , Articulación Temporomandibular , Fenómenos Biomecánicos , Factores Sexuales , Fenómenos Electromagnéticos , Mandíbula/fisiología , Movimiento/fisiología
16.
Quintessence Int ; 51(9): 722-731, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32696032

RESUMEN

OBJECTIVE: To investigate bone loss in the anterior edentulous maxilla restored with maxillary complete dentures and opposed by mandibular two-implant-supported overdentures (2-IODs) or complete dentures. METHOD AND MATERIALS: A systematic search was conducted using the Ovid MEDLINE, Embase, Web of Science, CINAHL, and Cochrane databases for studies investigating bone loss in the anterior edentulous maxilla with mandibular 2-IODs or complete dentures. Two reviewers assessed the eligibility of studies and risk of bias assessment was conducted according to the Newcastle-Ottawa Scale. A meta-analysis was performed using statistical software to estimate weighted mean difference in bone loss with 95% confidence interval (CI). The level of significance was defined as P value (< .05). RESULTS: A total of 2,510 studies were identified through electronic and manual searching. Six studies were selected and compounded for quantitative synthesis of 163 patients. Bone loss in the anterior edentulous maxilla was greater with 2-IODs than with complete dentures. The total estimate of weighted mean difference between 2-IODs and complete dentures was -1.40 (95% CI -3.12 to 0.31). However, the difference was not statistically significant (P = .11). The data were heterogenous across the studies based on chi-square statistics (χ2 [df = 7] = 52.75, P < .0001; τ2 = 5.53, I2 = 95.21%). In addition, the impact of implant splinting on bone loss was not significant (P > .29). None of the included studies were considered to be at high risk of bias. CONCLUSION: Within the limitations of the current systematic review and meta-analysis, the estimate of bone loss in the anterior edentulous maxilla was greater with 2-IODs than with complete dentures. However, the difference was not statistically significant. A well-designed randomized clinical study needs to be conducted to validate the results of this systematic review.


Asunto(s)
Prótesis de Recubrimiento , Arcada Edéntula , Prótesis Dental de Soporte Implantado , Dentadura Completa , Humanos , Mandíbula , Maxilar
17.
BMC Oral Health ; 20(1): 194, 2020 07 08.
Artículo en Inglés | MEDLINE | ID: mdl-32641033

RESUMEN

BACKGROUND: An increase in the number of elderly edentulous patients likely leads to a greater demand for dentures and denture adhesives. As denture adhesives have both positive and negative features, dentists need to know the types of denture adhesive users to be able to provide instruction to denture wearers on how to use denture adhesives effectively. This study aims to examine the utilization of denture adhesives and associated factors. METHODS: Seven closed-ended questionnaires were developed for a web-based survey. After that, Fisher's exact tests were performed to determine the difference in the denture adhesive usage rate by gender, type of denture, last dental visit, and smoking status. A multivariate-adjusted logistic regression analysis was performed with denture adhesive use or non-use as the dependent variable and the other items as independent variables. Next, Fisher's exact tests and a multivariate-adjusted logistic regression analysis were performed with the type of denture adhesives as the dependent variable in the same way. Statistical analyses were performed for all denture wearers, complete denture wearers, and partial denture wearers. The level of statistical significance was set at p = 0.05. RESULTS: A total of 1470 denture wearers in Japan participated in this study. Of these, 318 used denture adhesives, while 212 (66.7%) used cream; 74 (23.3%) used home liner; 25 (7.9%) used powder; four (1.3%) used sheets; and three (0.9%) used several types. The Fisher's exact tests revealed that the ratios of using denture adhesives were significantly higher for complete denture wearers (p < 0.001), last dental visit over 1 year (p = 0.005), and smokers (p = 0.005). For partial denture wearers, the ratio was significantly higher in smokers (p = 0.262). The multivariate adjusted logistic regression revealed that denture adhesive use or non-use were significantly associated with the type of denture and smoking status in all denture wearers, and just smoking status in partial denture wearers. There were no significant results about the type of denture adhesive selection. CONCLUSIONS: From all denture wearers, complete denture wearers and smokers are more likely to use denture adhesives. In addition, smokers significantly use denture adhesives if they are partial denture wearers.


Asunto(s)
Adhesivos/uso terapéutico , Cementos Dentales , Retención de Dentadura/estadística & datos numéricos , Dentadura Completa , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Humanos , Japón , Masculino , Persona de Mediana Edad , Salud Bucal , Calidad de Vida , Encuestas y Cuestionarios
19.
Dent Med Probl ; 57(2): 191-196, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32649808

RESUMEN

BACKGROUND: Different techniques and impression materials are employed in the process of fabricating complete denture (CD) bases. OBJECTIVES: The aim of this study was to determine differences in the denture base retention for acrylic maxillary CDs when using 2 different techniques and impression materials. Specifically, the green stick compound impression material was used for the sectional border molding technique and this was compared to using the addition vinyl silicone impression material with the single-step technique. MATERIAL AND METHODS: A crossover study was conducted on 10 participants who were completely edentulous in the upper arch (6 men and 4 women), aged 43-70 years. The participants' trays were split into 2 treatment groups: the P-group; and the Z-group. Addition vinyl silicone was used for single-step border molding in the P-group, followed by light-body final-wash impression. For the Z-group, the green stick compound was used for sectional border molding, followed by a final wash using a zinc oxideeugenol material.To quantify the retention force of the denture base in kilograms-force, a digital force gauge was used. RESULTS: The measurements indicated significantly higher mean retention values (p = 0.000) in the P­group (4.02 ±1.66 kgf) as compared to the Z­group (1.48 ±0.90 kgf). CONCLUSIONS: The results suggest the superiority of using the single-step border molding technique in the upper arch with the addition vinyl silicone material owing to the enhanced base retention of the acrylic denture base.


Asunto(s)
Técnica de Impresión Dental , Diseño de Dentadura , Adulto , Anciano , Estudios Cruzados , Materiales de Impresión Dental , Dentadura Completa , Femenino , Humanos , Masculino , Persona de Mediana Edad
20.
Shanghai Kou Qiang Yi Xue ; 29(1): 85-88, 2020 Feb.
Artículo en Chino | MEDLINE | ID: mdl-32524128

RESUMEN

PURPOSE: To investigate the category and prevalence rate of denture-related oral mucosal lesions (DML) in 185 patients with removable denture and analyze the influencing factors. METHODS: A total of 185 patients with removable denture who visited the department of stomatology of our hospital from October 2015 to June 2018 were investigated by questionnaire. DML types and locations were recorded in detail, and patients were followed up after treatment. Based on the data of this study, the differences of DML reports in other regions of China were analyzed by comparing the results searched from databases. SPSS 17.0 software package was used for statistical analysis. RESULTS: In this study, the DML prevalence rate was 42.7%, significantly higher in male patients than in female patients (54.17% vs 35.40%, P<0.05). DML was more common in complete denture wearers than that in partial denture wearers (66.67% vs 31.20%, P<0.05). The categories of DML were as followed (prevalence rate from high to low): denture stomatitis (54.43%), traumatic ulcer (34.18%), inflammatory hyperplasia (6.33%), and angular cheilitis (5.06%). CONCLUSIONS: DML is affected by multiple factors. Among them, denture related factors include denture type, denture wearing time, denture lasting time and cleaning method. DML is more influenced by the type of denture than the wearing time. Gender, ethnicity and systemic diseases may affect the prevalence of DML, but further studies are needed. The results of domestic studies in various regions cannot objectively reflect the current prevalence rate of DML, thus a multi-center epidemiological investigation is needed.


Asunto(s)
Dentadura Parcial Removible , Enfermedades de la Boca , Estomatitis Subprotética , China , Dentadura Completa , Dentadura Parcial , Femenino , Humanos , Masculino
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA