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1.
J Cancer Res Ther ; 16(3): 693-696, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32719295

RESUMEN

Xerostomia is a subjective symptom of dry mouth. It can occur as a part of the systemic disease, drug-induced side effect, or following therapeutic radiation therapy to the head-and-neck region. The primary complication faced by these xerostomic patients is the difficulty in retention of removable dentures. It is important to recognize that the prosthodontic management of these patients requires special attention and care. In an attempt to overcome the presence of xerostomia, several techniques of introducing reservoirs into the dentures containing salivary substitutes have been proposed. This case report presents a simplified approach for the construction of a reservoir in the maxillary denture, specifically in patients where other treatment modalities have failed. This technique provided excellent lubrication to oral tissues, hygienic for the patient, and utilized routine denture base material.


Asunto(s)
Diseño de Dentadura/métodos , Retención de Dentadura/métodos , Dentadura Completa Superior/normas , Neoplasias de Cabeza y Cuello/radioterapia , Traumatismos por Radiación/terapia , Xerostomía/terapia , Anciano , Neoplasias de Cabeza y Cuello/patología , Humanos , Masculino , Pronóstico , Traumatismos por Radiación/etiología , Radioterapia/efectos adversos , Xerostomía/etiología
2.
Int. j. odontostomatol. (Print) ; 14(2): 236-241, June 2020. tab
Artículo en Inglés | LILACS | ID: biblio-1090680

RESUMEN

There is no information about the possible impact in denture retention after the use of common denture adhesives (DAs) when poor denture foundations (PDF) are present. Moreover, there is a lack of information about which current formulation provides greater retention and for how long. Twelve models from edentulous patients with different ridge shape and border height were used and complete dentures were manufactured. Four different formulation brands of DAs were tested after 10 minutes and three, six, nine, and 12 hours of DA application using a universal testing machine. The Fittydent® and Fixodent® adhesives had the highest retention at 12 hours. The PDF group increased on average its retention by 400 %. However, the group presented lower retention compared to the good denture foundation group. In conclusion, DAs significantly increased denture retention. The PDF group were the most benefited with the application of DAs. The Fixodent® paste had the highest retention.


No existe información acerca del posible impacto en la retención de dentaduras después del uso de adhesivos dentales comunes (DAs) cuando existen rebordes alveolares deficientes (PDF). Más aun, existe una falta de información acerca de cuál formula actual provee mayor retención y por cuanto tiempo. Doce modelos de pacientes edentulos con diferentes formas y alturas en sus rebordes alveolares fueron usados, y dentaduras completas les fueron realizadas. Cuatro diferentes fórmulas y marcas de DAs fueron evaluadas después de 10 minutos, tres, seis, nueve y 12 horas de que se aplicó el DA usando una maquina universal de pruebas. Los adhesivos Fittydent® y Fixodent® presentaron la retención más alta a las 12 horas. El grupo con PDF incrementó su retención hasta en un 400 %. Sin embargo, el grupo presentó menor retención cuando se comparó con el grupo que posee adecuados procesos alveolares. Los DAs incrementaron significativamente la retención de las dentaduras. El grupo PDF fue el más beneficiado con la aplicación de DAs. La pasta Fixodent® provee la más alta retención.


Asunto(s)
Humanos , Retención de Dentadura/métodos , Cementos Dentales/química , Proceso Alveolar , Técnicas In Vitro , Adhesivos
3.
Clin Exp Dent Res ; 5(4): 316-325, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-31452942

RESUMEN

Food ingress under dentures is a common problem that may be reduced by denture adhesive use. The objective of this study was to explore the effect of the mode of application of a denture adhesive on reducing accumulation of food particles under dentures. This was a single-centre, controlled, single-blind, randomized, three-treatment, three-period, crossover study in participants with complete, removable well-fitting, well-made upper/lower dentures. Treatments were: 1) experimental denture adhesive application (test adhesive) applied with a precision applicator as continuous strips; 2) marketed denture adhesive (positive control) applied using a flat ribbon nozzle as dabs; 3) no adhesive. Food-occlusion testing was performed by assessing peanut particle migration under dentures with denture retention/stability evaluated using the Kapur Index (Olshan modification). Differences were assessed using an ANOVA model. Adhesive oozing and perceptions of the adhesives were assessed by questionnaire. All 83 randomized participants completed the study. There were no significant differences between positive control or test adhesives versus no adhesive, or between test adhesive and positive control, for mass of peanut particles recovered from dentures. Both adhesives had significantly higher retention and stability scores compared with no adhesive (all P < .01). Participants reported significantly higher scores for denture comfort, confidence, satisfaction and movement with both adhesives versus no adhesive (all P < .01). No differences in adhesive ooze were reported between adhesives. No adverse events were reported. In conclusion, there was no difference in performance, as measured by peanut particle mass recovered from upper/lower dentures, for the test adhesive, positive control and no adhesive.


Asunto(s)
Adhesivos/administración & dosificación , Retención de Dentadura/métodos , Dentadura Completa Inferior/efectos adversos , Dentadura Completa Superior/efectos adversos , Masticación , Adhesivos/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Estudios Cruzados , Femenino , Humanos , Masculino , Persona de Mediana Edad , Satisfacción del Paciente , Método Simple Ciego , Resultado del Tratamiento
4.
Clin Exp Dent Res ; 5(3): 276-283, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-31249709

RESUMEN

Unlike other oral care products, there are limited technologies in the denture adhesive category with the majority based on polymethyl vinyl ether/maleic anhydride (PVM/MA) polymer. Carbomer-based denture adhesives are less well studied, and there are few clinical studies directly comparing performance of denture adhesives based on different technologies. This single-centre, randomised, three-treatment, three-period, examiner-blind, crossover study compared a carbomer-based denture adhesive (Test adhesive) with a PVM/MA-based adhesive (Reference adhesive) and no adhesive using incisal bite force measurements (area over baseline over 12 hr; AOB0-12) in participants with a well-made and at least moderately well-fitting complete maxillary denture. Eligible participants were randomised to a treatment sequence and bit on a force transducer with increasing force until their maxillary denture dislodged. This procedure was performed prior to treatment application (baseline) and at 0.5, 1, 3, 6, 9, and 12 hr following application. Forty-four participants were included in the modified intent-to-treat population. AOB0-12 favoured both Test adhesive to No adhesive (difference: 2.12 lbs; 95% CI [1.25, 3.00]; p < 0.0001) and Reference adhesive to No adhesive (difference: 2.76 lbs; 95% CI [1.89, 3.63]; p < 0.0001). There was a numerical difference in AOB0-12 for Test versus Reference adhesive (-0.63 lbs; [-1.51, 0.25]); however, this was not statistically significant (p = 0.1555). Treatments were generally well tolerated. Both PVM/MA and carbomer-based denture adhesives demonstrated statistically significantly superior denture retention compared with no adhesive over 12 hr, with no statistically significant difference between adhesives.


Asunto(s)
Resinas Acrílicas/uso terapéutico , Adhesivos/uso terapéutico , Fuerza de la Mordida , Carboximetilcelulosa de Sodio/uso terapéutico , Retención de Dentadura/métodos , Maleatos/uso terapéutico , Polietilenos/uso terapéutico , Polímeros/uso terapéutico , Adhesivos/química , Anciano , Anciano de 80 o más Años , Carboximetilcelulosa de Sodio/química , Estudios Cruzados , Femenino , Humanos , Masculino , Persona de Mediana Edad , Polímeros/química , Método Simple Ciego
5.
Niger J Clin Pract ; 22(5): 669-674, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-31089022

RESUMEN

Aim: The effect of oral rehabilitation on the oral perception of implant-supported overdenture patients is a concern. This study evaluated the effects of the attachment type and palatal coverage on oral perception and patient satisfaction in maxillary implant-supported complete denture patients. Subjects and Methods: The correlation between oral perceptual ability (OPA) and patient satisfaction in three groups was investigated. Group I consisted of dentate individuals (n = 40), Group II consisted of maxillary implant-supported complete denture patients with bar attachments and palatal coverage (n = 12), and Group III of maxillary implant-supported complete denture patients with magnetic attachments and palatal coverage (n = 14). In addition, implant-supported maxillary overdentures with bar attachments, with (Group II; n = 12) and without (Group IV; n = 18) palatal coverage, were examined in terms of patient satisfaction and OPA. The relationship between OPA and patient satisfaction was assessed with the Turkish version of the Oral Health Impact Profile-14 (OHIP-TR-14) satisfaction survey. To compare oral sensory function among the groups, tactile awareness and pressure awareness were assessed. Results: There was no significant difference in OHIP-TR-14 scores between Groups II and III. In addition, there was no correlation between oral tactile function and patient satisfaction in Groups II and III. For patients with maxillary bar-retained implant-supported overdentures, palatal coverage did not affect the correlation between OPA and patient satisfaction, lateral pressure threshold, or tactile thickness threshold. Conclusion: According to the results of the study, whether maxillary implant-supported overdentures were made with a bar- or magnetic-type retainer, and whether bar-retained implant-supported overdentures had an open or closed palate did not affect the correlation between patient satisfaction and oral perception.


Asunto(s)
Retención de Dentadura/métodos , Prótesis de Recubrimiento , Satisfacción del Paciente , Percepción del Tacto , Prótesis Dental de Soporte Implantado , Dentadura Completa , Femenino , Humanos , Masculino , Maxilar , Persona de Mediana Edad , Paladar (Hueso) , Encuestas y Cuestionarios
6.
Med. oral patol. oral cir. bucal (Internet) ; 24(2): e254-e259, mar. 2019. ilus, tab
Artículo en Inglés | IBECS | ID: ibc-180650

RESUMEN

Background: The aim of this study was to investigate the clinicians' experience on maintaining the primary stability of implants with aggressive threads belonging to a novel dental implant system. Material and Methods: Three hundred implants with aggressive threads were inserted in fresh bovine ribs mimicking Type IV bone by five clinicians which were classified according to their previous experience of total number of implant insertion. An independent examiner measured the primary stability of all implants after insertion by using resonance frequency analysis (RFA), electronic percussive testing (EPT) and removal torque methods. Results: No significant differences were detected between the stability values measured by the clinicians (p> 0.05) except the Periotest values (PTVs) of the non-experienced clinician. PTVs of the non-experienced clinician were significantly higher than the PTVs of the expert and good clinicians (p<0.05). Significantly higher stability values were detected in the secondary insertion of the non-experienced clinician as compared to her initial insertion values (p<0.05). No significant differences were detected between the first and second measurements of the other clinicians (p> 0.05). Conclusions: Within the limitations of this ex-vivo study, it may be concluded that experience does not play an important role in maintaining the stability of implants with aggressive threads


No disponible


Asunto(s)
Animales , Implantación Dental Endoósea/métodos , Oseointegración/fisiología , Interfase Hueso-Implante/fisiología , Diseño de Implante Dental-Pilar/métodos , Retención de Dentadura/métodos , Modelos Animales
7.
Med. oral patol. oral cir. bucal (Internet) ; 24(2): e260-e264, mar. 2019. tab
Artículo en Inglés | IBECS | ID: ibc-180651

RESUMEN

Background: The aim of the present prospective clinical study is to compare the stability of the implant-bone interface by the ISQ quotient and marginal bone loss (MBL) rate during one year of follow-up in four system implants with the same surface and different design. Material and Methods: Prospective randomized clinical trial of 21 patients in which four implant systems with the same surface and different design were placed. Patients were treated by the same operator following a similar surgical protocol with submerged technique. The second surgery to perform the prosthesis was performed at 3 months. All patients went to their review at 6 months and a year. A periapical radiograph for crestal bone analysis and an Implant stability quotient by resonance frequency analysis (ISQ) analysis were taken at baseline and the reviews. Results: No statistically significant differences were found in the Implant stability quotient by resonance frequency analysis and Marginal Bone Loss in the four types of implants. The ISQ increased from the moment of insertion of the implant until the revision to the year, showing an increase of the stability implant, being this increasing less between the 6 months and the year. Conclusions: Differences in the design of the four implants tested in this study did not show statistically significant differences in any of the variables studied, so the implant design does not influence implant stability and marginal bone loss in the first year after placement


No disponible


Asunto(s)
Humanos , Masculino , Femenino , Persona de Mediana Edad , Anciano , Pérdida de Hueso Alveolar/diagnóstico por imagen , Implantación Dental Endoósea/métodos , Retención de Dentadura/métodos , Adaptación Marginal Dental/clasificación , Estudios Prospectivos , Diseño de Implante Dental-Pilar/métodos , Oseointegración/fisiología
8.
Int J Oral Maxillofac Implants ; 34(2): 381­389, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30703183

RESUMEN

PURPOSE: This study evaluated the influence of labial implant inclination on the retention and stability of different resilient stud attachments for mandibular implant overdentures. MATERIALS AND METHODS: Four identical mandibular edentulous acrylic resin models were fabricated. For each model, two implants were inserted at the canine areas with different degrees of labial inclination: 0, 10, 20, and 30 degrees. Four experimental overdentures were fabricated over the models and fitted to the implants using resilient stud attachments. Regular retentive inserts (extra-light, light, and medium retention) were used for all implant inclinations, and extended-range inserts (extra-light and medium retention) were used for 30-degree inclination only. Vertical (retention) and oblique (stability) dislodging forces (lateral, anterior, and posterior) were evaluated initially (initial retention) and after overdenture insertion and removal (final retention). RESULTS: After repeated insertions and removals, inclination of 30 degrees recorded the highest retention and lateral stability, and 0 degrees recorded the highest posterior stability; 20 degrees showed the lowest retention, and 30 degrees recorded the lowest posterior stability. The highest stability and retention values were recorded with light and medium regular inserts, and the lowest values were noted with extra-light regular inserts. CONCLUSION: Within the limits of this study, moderate labial implant inclination (10 degrees and 20 degrees) was shown to negatively affect retention and anterior/lateral stability, and excessive implant inclination (30 degrees) to negatively affect posterior stability. When implants are inclined labially, it is recommended to use light and medium regular stud attachments to obtain high levels of retention and stability for two-implant-retained overdentures.


Asunto(s)
Implantación Dental Endoósea/métodos , Prótesis Dental de Soporte Implantado , Prótesis de Recubrimiento , Arcada Edéntula/cirugía , Resinas Acrílicas , Análisis del Estrés Dental , Retención de Dentadura/métodos , Retención de Dentadura/normas , Humanos , Mandíbula/cirugía
9.
J Prosthodont ; 28(2): e657-e660, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29024143

RESUMEN

A standardized periapical radiograph is still the most suitable technique for monitoring peri-implant osseous destruction during long-term treatment. This article describes a new method for custom fabrication of an acrylic template with standardized reproducible assessment of implants retaining mandibular bar overdentures, without removal of the bar and regardless of the implant system used.


Asunto(s)
Prótesis Dental de Soporte Implantado , Retención de Dentadura/métodos , Prótesis de Recubrimiento , Radiografía Dental/métodos , Resinas Acrílicas , Prótesis Dental de Soporte Implantado/instrumentación , Prótesis Dental de Soporte Implantado/métodos , Retención de Dentadura/instrumentación , Humanos , Mandíbula , Oseointegración , Radiografía Dental/instrumentación
10.
J Prosthodont ; 28(1): e18-e20, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29148238

RESUMEN

The purpose of this article was to present an alternative procedure using resin-based provisional material to create the posterior palatal seal (PPS). This method offers more practicality in clinical routine and increased control for addition of material to create the PPS when compared to traditional techniques such as the use of impression wax.


Asunto(s)
Técnica de Impresión Dental , Diseño de Dentadura/métodos , Retención de Dentadura/métodos , Dentadura Completa , Resinas Sintéticas/uso terapéutico , Materiales de Impresión Dental/uso terapéutico , Humanos
11.
J Prosthodont ; 28(2): e604-e608, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29323773

RESUMEN

PURPOSE: Mechanical and optical studies of glass fiber composites have revealed great resistance and satisfactory bonds between the glass fibers and composite resins. This study aimed to evaluate the long-term survival of anterior and posterior direct glass fiber-reinforced composite (FRC) fixed partial dentures (FPD). MATERIALS AND METHODS: Twenty-three patients (9 men, 14 women) aged 18 to 67 received 23 d-FRC-FPDs. The frameworks of the FPDs were unidirectional pre-impregnated glass fibers (ever Stick C&B). The retainers were inlay composite resin retainers (n1 = 19) and composite resin wings (n2 = 4). The FPD that used inlay retainers and composite resin wing retainers was called the hybrid design. The mean follow-up period was 4.91 years with 12-month check-ups performed by two independent operators. The survival rates of the glass fiber FPDs were determined. RESULTS: Six-year survival rates for the two types of FPDs were 94.7% for the inlay retainer type versus 25% for the hybrid type, with a statistically significant difference (log-rank test χ2 (1) = 11.422, p = 0.001). The inlay retainers were functional, with only one patient with a fracture line in the connector held by the glass fibers. Kaplan-Meier survival curves were drawn to show the difference between the two types of retainers. CONCLUSION: According to the results of this study, these long-term interim FRC-FPD were resistant enough to allow mastication, minimally invasive and also esthetic, with inlay composite retainers as the better solution.


Asunto(s)
Retención de Dentadura/métodos , Dentadura Parcial Fija , Vidrio , Adolescente , Adulto , Anciano , Resinas Compuestas , Materiales Dentales , Fracaso de la Restauración Dental , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Tiempo , Adulto Joven
12.
J Prosthodont ; 28(2): e627-e636, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-28387994

RESUMEN

PURPOSE: To compare retention and stability of Locator and bar attachments for implant-retained maxillary overdentures. MATERIALS AND METHODS: Four implants were inserted into a maxillary acrylic resin model in canines and second premolar areas. Experimental overdentures were connected to the implants with bar (group I) or Locator (group II) attachments. Locators were divided into 3 subgroups according the degree of retention of the patrix nylon insert: Locator blue (group IIa), Locator pink (group IIb), and Locator transparent (group IIc). Retention (vertical dislodging) and stability (lateral, anterior, posterior dislodging) forces (N) were measured at the start of the experiment (initial retention) and after 540 cycles of denture insertion and removal (final retention). RESULTS: The highest initial and final stability was recorded with group IIc, followed by group IIb and group IIa, and the lowest retention and stability was noted with group I. For all groups, the highest final retention and stability forces were noted with vertical dislodging, followed by posterior dislodging, anterior dislodging, and lateral dislodging. The highest loss of retention and stability was recorded with group I, followed by group IIc, group IIb, and group IIa. CONCLUSION: Locator attachments are recommended to retain maxillary overdentures over Dolder bar attachments, as Locator attachments were associated with high retention and stability after wear simulation with minimal retention loss.


Asunto(s)
Prótesis Dental de Soporte Implantado/métodos , Retención de Dentadura/métodos , Prótesis de Recubrimiento , Pilares Dentales , Diseño de Implante Dental-Pilar/métodos , Prótesis Dental de Soporte Implantado/instrumentación , Análisis del Estrés Dental , Retención de Dentadura/instrumentación , Humanos , Técnicas In Vitro , Maxilar
13.
J Prosthodont ; 28(1): 3-9, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29855111

RESUMEN

Various attachment systems have been used to facilitate the retention, stability, and support of overdentures. The low profile design, pivoting technology, and durability of the Locator attachment made it one of the commonly used tissue-supported implant-retained overdentures. It has been successfully used to retain overdentures as well as partial dentures. This article describes the uses of the new Locator R-Tx abutment and illustrates both the direct and indirect techniques used to process the denture attachment housing into the prosthesis to retain overdentures and partial dentures.


Asunto(s)
Prótesis Dental de Soporte Implantado/métodos , Retención de Dentadura/métodos , Prótesis de Recubrimiento , Adulto , Anciano , Pilares Dentales , Diseño de Implante Dental-Pilar , Prótesis Dental de Soporte Implantado/instrumentación , Dentadura Completa , Dentadura Parcial Removible , Femenino , Humanos
14.
J Prosthodont Res ; 63(1): 15-24, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30269880

RESUMEN

PURPOSE: The number of implants needed to support a maxillary overdenture is still a controversial issue. The aim of this systematic review was to investigate the number of implants required to support a maxillary overdenture in order to obtain optimal treatment outcomes in terms of implant survival, overdenture longevity and patient satisfaction. STUDY SELECTION: Pubmed and EMBASE databes were systematically searched and complemented by hand searching from 2000 to 2017. The Prisma statement and a PICOS approach were adopted. All selected articles provided at least two-year follow-up and 10 totally edentulous patients. Survival rate of implants and overdentures were statistically analyzed according to number of implants and according to splitting technique, employing non-parametric Fisher Test for unpaired data. For the pooled analysis of implant failures, the odds ratio between group of 4 splinted implants and group of more than 4 splinted was calculated. RESULTS: A total of 28 articles were included. Data analysis of the included studies showed that the survival rate of implants appeared higher in ≥ 4 implants group, whereas the high survival rate of overdentures and patient satisfaction were not significantly influenced by the number of implants. CONCLUSIONS: The findings of our analysis indicate that overall the most frequent tendency is to place at least four implants, splinted or unsplinted, in order to ensure a higher survival rate of implants. However, the relationship between overdenture survival, the patient's quality of life, and the number of implants required to support a maxillary overdenture has yet to be clarified.


Asunto(s)
Implantes Dentales , Prótesis Dental de Soporte Implantado , Retención de Dentadura/métodos , Prótesis de Recubrimiento , Maxilar , Humanos , Arcada Edéntula/psicología , Arcada Edéntula/rehabilitación , Satisfacción del Paciente , PubMed , Calidad de Vida , Resultado del Tratamiento
15.
J Prosthodont ; 28(2): e666-e674, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29143403

RESUMEN

PURPOSE: To evaluate the effect of distal implant inclination on axial and nonaxial retentive forces of different Locator attachments used to retain mandibular overdentures. MATERIALS AND METHODS: Four duplicate mandibular edentulous acrylic models received 2 implants in the canine areas with 0°, 5°, 10°, and 20° distal inclinations. Experimental overdentures were connected to the implants with Locator extra light retention (Le), Locator light retention (Ll), and Locator medium retention (Lm). For the 20° model, extended range Locator extra-light retention (Lee) and Locator medium retention (Lem) were used. Axial and nonaxial (anterior, posterior, lateral) retentive forces were measured initially and after 540 cycles of denture insertion and removal. Three-way mixed ANOVA was used to analyze axial and nonaxial retentive forces RESULTS: After wear simulation, 20° angulation showed the highest axial retention for Le and Ll while 5° showed the highest retention for Lm; 0° and 5° showed the highest anterior and posterior retention for Lm; 20° showed the highest lateral retention for Le and Ll. For all implant inclinations, Lm showed the highest axial and nonaxial retention, and Le and Lee showed the lowest retention for 10° and 20° inclined implants, respectively. CONCLUSIONS: Axial and nonaxial retention of Locator attachments for implant-retained overdentures are significantly affected by the degree of distal implant inclination and the type of nylon inserts. Lm is recommended to retain overdentures when implants have 5° or 10° distal inclination, and Le and Ll are recommended with 20° inclination to maintain high axial and nonaxial retention after wear.


Asunto(s)
Prótesis Dental de Soporte Implantado , Prótesis de Recubrimiento , Prótesis Dental de Soporte Implantado/métodos , Análisis del Estrés Dental/instrumentación , Análisis del Estrés Dental/métodos , Diseño de Dentadura , Retención de Dentadura/métodos , Humanos , Técnicas In Vitro , Mandíbula
16.
Clin Implant Dent Relat Res ; 21(1): 21-31, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-30372576

RESUMEN

BACKGROUND: Clinical success with mandibular implant overdentures is highly dependent on a reliable attachment system connecting prosthesis and implants. PURPOSE: To compare the levels of retention and patient-based outcomes on implant overdentures retained/supported by cylindrical (LA) and ball (RA) attachment systems overtime and investigate their relationship. MATERIALS AND METHODS: Attachment retention (Newtons), and patient satisfaction with the treatment, prosthesis stability, and ability to chew (VAS, 100 mm) were assessed in a crossover trial for both attachment systems at baseline, 1 week, 3, 6, and 12 months and compared to preintervention values. Patients' preference was also recorded. RESULTS: Mean retention of worn attachments and patient satisfaction with denture retention assessed in the preintervention phase were 3.2 N (SD 4.9) and 23.5 mm (IQR 6.5-65.5), respectively. Overall mean retention along the study was higher for RA than LA (difference of 5.0 N, 95%CI: 2.5-7.6; P = 0.0005), declining significantly overtime (P < 0.0001), more steeply for the cylindrical attachment. Differences in VAS ratings between attachments were nonsignificant in the crossover phase (P > 0.05), but general satisfaction, satisfaction with retention, and comfort were significantly higher when compared with preintervention scores (P < 0.05). Ratings of retention decreased significantly overtime for both systems and earlier for LA than RA. Satisfaction was lower when retention was either too low or too high, although there was large variation in this association. At the end of the study, all participants chose to remain with the attachment system that they had received last. CONCLUSIONS: Attachment selection should be based on patients' individual characteristics and expectations as satisfaction with the attachment retention and denture stability vary largely among patients.


Asunto(s)
Prótesis Dental de Soporte Implantado , Retención de Dentadura , Prótesis de Recubrimiento , Satisfacción del Paciente , Adulto , Prótesis Dental de Soporte Implantado/métodos , Prótesis Dental de Soporte Implantado/psicología , Retención de Dentadura/métodos , Retención de Dentadura/psicología , Prótesis de Recubrimiento/psicología , Femenino , Humanos , Masculino , Masticación , Prioridad del Paciente , Satisfacción del Paciente/estadística & datos numéricos , Resultado del Tratamiento
17.
J Prosthodont Res ; 63(1): 47-51, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30033158

RESUMEN

PURPOSE: The purpose of this in vitro study was to compare the stability of removable implant-supported maxillary overdentures with fixed complete dentures and conventional dentures. METHODS: Four types of complete dentures were tested: conventional complete dentures; overdentures retained by a male resilient attachment system; overdentures retained by a combination of clip bar and attachment system; and fixed complete dentures. Each group was placed in the posterior and anterior region and the stability was recorded by measuring the vertical displacement of the prosthesis. RESULTS: There was a difference in the vertical movement of the prosthesis according to the type of system. The results showed that the behavior of the overdenture retained by a combination of a clip bar and attachment system is comparable with the stabilization of an implant-retained fixed complete denture. CONCLUSIONS: Overdentures retained by a combination of a clip bar and attachment presented better stability and retention capacity under our experimental conditions, close to that of the positive control (fixed complete denture), with the advantages of removable overdentures.


Asunto(s)
Prótesis Dental de Soporte Implantado , Retención de Dentadura/métodos , Dentadura Completa , Prótesis de Recubrimiento , Dentadura Parcial Fija , Dentadura Parcial Removible , Maxilar , Modelos Dentales , Técnicas In Vitro , Arcada Edéntula/rehabilitación
18.
J Prosthodont ; 28(1): e1-e5, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-28122401

RESUMEN

Prosthetic rehabilitation of a completely edentulous patient should never be restricted to the replacement of missing teeth. The ultimate aim of complete denture treatment should be restoration of the full range of oral functions and esthetics. Slumped cheeks are always a concern for esthetically demanding complete denture patients. This article describes a simple, scientific, cost-effective technique to improve facial esthetics in a completely edentulous patient with the help of a cheek plumper. The technique used here implements the concept of neutral zone to precisely determine the amount of space available for the cheek plumper. The simple friction lock attachments that retained the cheek plumpers on the prosthesis were also fabricated after determining the space available in the appropriate areas. Thus an effort was made to keep the cheek plumpers unobtrusive yet effective to ensure complete integration of the prosthesis into the stomatognathic system.


Asunto(s)
Mejilla , Retención de Dentadura/instrumentación , Dentadura Completa , Estética Dental , Boca Edéntula/rehabilitación , Mejilla/anatomía & histología , Técnica de Colado Dental , Diseño de Dentadura/instrumentación , Diseño de Dentadura/métodos , Retención de Dentadura/métodos , Humanos , Masculino , Persona de Mediana Edad
19.
Ned Tijdschr Tandheelkd ; 125(11): 605-609, 2018 11.
Artículo en Holandés | MEDLINE | ID: mdl-30457581

RESUMEN

An overdenture on implants is the treatment of choice for patients with complaints about their conventional complete dentures. While a lot is known regarding the performance of implant-supported mandibular overdentures, much less is known regarding the performance of implant-retained maxillary overdentures. In this doctoral dissertation, various aspects of overdentures on 4 dental implants in the maxilla are discussed. From a systematic review of the literature, it appeared that an overdenture (maxillary or mandibular) on implants improved chewing efficiency, increased maximum bite force and increased patient satisfaction. Implants placed with a maximum dehiscence of two thirds of the buccal implant surface also appeared to function well after 5 years. An overdenture with a bar attachment system was associated with less marginal bone loss, a better subjective chewing efficiency and greater patient satisfaction than an overdenture retained by locators. The differences were, however, small and from a cost-effectiveness point of view, the use of overdentures retained by locators would not be a bad choice.


Asunto(s)
Prótesis Dental de Soporte Implantado , Retención de Dentadura/instrumentación , Prótesis de Recubrimiento , Satisfacción del Paciente , Implantes Dentales , Retención de Dentadura/métodos , Humanos , Maxilar
20.
Int J Periodontics Restorative Dent ; 38(6): e105-e111, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30304069

RESUMEN

This case report introduces a temporary denture with reduced extension stabilized in the edentulous maxilla as a possible treatment method for patients with a severe gag reflex, allowing them to test the function, esthetics, and tolerance of the denture prior to hard tissue augmentation and implant placement. A 4-mm implant was placed in the central anterior palate and allowed to heal for 3 months. During the complete treatment period, a denture with reduced extension can be delivered on a fixed Locator abutment. This method was successfully applied in three patients, and the palatal implant remained stable until the final removable prosthesis could be delivered.


Asunto(s)
Implantes Dentales , Retención de Dentadura/métodos , Humanos , Maxilar/cirugía
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