Effect of polymerization method and fabrication method on occlusal vertical dimension and occlusal contacts of complete-arch prosthesis.

PURPOSE: This study evaluated the dimensional stability of a complete-arch prosthesis processed by conventional method in water bath or microwave energy and polymerized by two different curing cycles. MATERIALS AND METHODS: Forty maxillary complete-arch prostheses were randomly divided into four groups (n = 10): MW1 - acrylic resin cured by one microwave cycle; MW2 - acrylic resin cured by two microwave cycles: WB1 - conventional acrylic resin polymerized using one curing cycle in a water bath; WB2 - conventional acrylic resin polymerized using two curing cycles in a water bath. For evaluation of dimensional stability, occlusal vertical dimension (OVD) and area of contact points were measured in two different measurement times: before and after the polymerization method. A digital caliper was used for OVD measurement. Occlusal contact registration strips were used between maxillary and mandibular dentures to measure the contact points. The images were measured using the software IpWin32, and the differences before and after the polymerization methods were calculated. The data were statistically analyzed using the one-way ANOVA and Tukey test (α = .05). RESULTS: he results demonstrated significant statistical differences for OVD between different measurement times for all groups. MW1 presented the highest OVD values, while WB2 had the lowest OVD values (P<.05). No statistical differences were found for area of contact points among the groups (P=.7150). CONCLUSION: The conventional acrylic resin polymerized using two curing cycles in a water bath led to less difference in OVD of complete-arch prosthesis.

Fluorination of zirconia surfaces impairs bonding to resin cement.

The aim of this study was to evaluate the fluorination of a zirconia surface as an alternative treatment for bonding to resin cement; the null hypothesis was that fluorination would not improve adhesion values. Four different surface treatments were performed on the surface of yttria-stabilized tetragonal zirconia polycrystal discs (N = 80): Ctrl (control), no treatment; SB, sandblasting with 50-µm alumina particles; SBS, sandblasting with 30-µm silica-modified alumina particles and application of silane; and SF, fluorination with sulfur hexafluoride-containing plasma. The surface roughness (Ra) of each group was measured after surface treatment. Dual-cure resin cement was inserted into cylindrical matrices, and 2 cylinders (0.7 × 3.0 mm) were cemented to each ceramic disc surface. Half of the specimens were thermocycled, and microshear bond strength tests were performed. The SBS group presented the highest median values of surface roughness, while the Ctrl group presented the lowest values. Without thermocycling, the median bond strength of the SF group was statistically similar to those of the sandblasted groups (SB and SBS). After thermocycling, all specimens from the Ctrl and SF groups presented as failures, and their bond strength was considered null. The SB and SBS groups presented decreased bond strengths. Failures were classified as predominantly mixed at the adhesive interface. The fluorination of the zirconia ceramic surface with sulfur hexafluoride as a source gas did not promote stable bond strengths to resin cement. After aging, adhesion was possible only after sandblasting of the ceramic surface.

Three-dimensional finite element analysis of occlusal splint and implant connection on stress distribution in implant-supported fixed dental prosthesis and peri-implantal bone.

The aim of this study was to investigate the influence of occlusal splint therapy on the stress distribution of implant-supported fixed dental prosthesis (FDP) and peri-implantal bone structures using three-dimensional (3D) finite element analysis (FEA). The system consisted of two implants (positioned on region of second premolar and second molar) as retainers of fixed porcelain-fused-to-metal 3-unit FDP (first molar as pontic element). Two implant connections systems (external and internal hexagon) were tested. Static axial loads simulating functional (100N) and overloaded (300N) chewing were applied on the occlusal surface of the FDP covered or not with the occlusal splint. Maximum von Mises stress and bioperformance were accessed for the implants and bone tissues (cortical and cancellous) models. Analytic results indicated that independently of the load condition, implant region, and connection type, the presence of the occlusal splint decreased the stress developed in the implants. Both bone tissues showed increased levels of von Mises stress, and the bioperformance index was far from their maximum yield strength. The internal hexagon implants presented lower stress on premolar and molar regions than external hexagon implants under functional load and overload. The presence of the occlusal splint device over implant-supported FDP may be clinically useful for forwarding stresses towards the bone structure to maintain implants for long term.

Selamento dentinário imediato: proposição de protocolos clínicos / Immediate dentin sealing: proposition for clinical protocols

O selamento dentinário imediato é uma técnica que visa à aplicação de um sistema adesivo imediatamente após a confecção do preparo dental e antes do procedimento de moldagem para a confecção de restaurações indiretas. Observou-se, através de revisão de literatura, que esta abordagem traz benefícios na resistência de união a cimentos resinosos e na prevenção à sensibilidade pós-operatória de dentes preparados para restaurações indiretas. Diversos sistemas adesivos, assim como cimentos resinosos, com diferentes formulações e técnicas de utilização, estão disponíveis no mercado. Sob esse enfoque, foi proposto um protocolo de utilização da técnica de selamento dentinário imediato para os diferentes tipos de restaurações indiretas(AU)

The immediate dentin sealing is a technique that comprises the application of an adhesive system immediately after tooth preparation and before impression taking for the fabrication of indirect restorations. Based on a literature review, it was observed that this approach has benefits regarding bonding strength of dentin to resin cements and decreases the post operatory sensitiveness of teeth prepared for indirect restorations. A number of adhesive systems, as well as resin cements, with different formulations and application protocols are available. Based on the available information, it was proposed a protocol for the application of the immediate dentin sealing technique for different types of tooth preparation(AU)

Influence of abutment design on retention of metal copings cemented to implants.

Objective The study evaluated the influence of abutment design on the retention of implant-cemented metal copings. Material and methods Two abutments of the same system with the same indications, height and the total occlusal convergence, but of different designs were evaluated. Ten RN synOcta abutments (Straumann, Waltham, MA) and ten RN titanium solid abutments (Straumann, Waltham, MA) were tightened to 35 Ncm on 20 implant analogs previously placed in resin blocks. Twenty plastic burnout copings were waxed, included, cast and machined by a single operator. Coping was inspected for surface irregularities using a stereomicroscope at 10x magnification, and then, they were cemented (Temp Bond NE, Kerr, Romulus, MI) with 5 kg load for 10 min. The samples were stored for 24 h in room temperature and 100% humidity and then subjected to pull-out test at a crosshead speed of 0.5 mm/min. The load required to dislodge each coping was recorded (kgf) and and mean values for each group statistically calculated. Means and standard deviations of loads at failure were analyzed using Student's t-test. Results The mean load required to dislodge the copings showed by synOcta abutments (11.19 kgf) was statiscally higher than s solid abutments (10.18 kgf). Conclusions: It was concluded that the abutment design influenced significantly the retention of metal copings.

Tratamento de superfície das zircônias previamente à cimentação adesiva / Surface treatment in zircônia prior to adhesive cementation

As próteses livres de metal têm sido muito utilizadas na odontologia restauradora. Diferentes sistemas cerâmicos surgiram nos últimos anos com tecnologia de fabricação apurada e excelente qualidade estética. As cerâmicas reforçadas por óxido de zircônia têm sido indicadas na confecção de coroas totais e próteses fixas em dentes anteriores e posteriores. Em função da necessidade de se realizar uma cimentação adesiva eficiente, este trabalho tem por objetivo realizar uma revisão da literatura dos métodos de tratamento de superfície empregados para as cerâmicas reforçadas por óxido de zircônia previamente à cimentação adesiva...

Metal-free prostheses are extensively used in Restorative Dentistry. Different ceramic systems appeared in the last few years with accurate manufacturing technology and high aesthetic quality. Zirconium oxide-reinforced ceramics have been recommended for fabrication of fixed prostheses and full crowns, both for anterior and posterior teeth. The aim of this literature review was to address relevant aspects to achieve effective adhesive cementation of different surface treatment methods of zirconium-oxide reinforced ceramics, before adhesive cementation...

Thickness and marking quality of different occlusal contact registration strips

Objectives Evaluate the thickness and the marking quality of different occlusal contact registration strips (OCRS) and a possible correlation between them. Material and Methods The following OCRS were selected: Accufilm II, BK20, BK21, BK22, BK23, BK28, and BK31. The thickness was measured in three points of the OCRS with an electronic measuring device (TESA), and the mean was calculated. To produce the marks on the strips, composite resin specimens were adapted to a universal testing machine (Versat 2000) with 40 kgf load cell at a speed of 1.0 mm/min. The mark images were photographed with a stereoscopic microscope (Stemi SV11) and processed and analyzed by the 550-Leica Qwin® analyzer. Results Values (μm) found in the 1st and 2nd thickness measurements were: Accufilm II - 16.4 and 14.2; BK20 - 10.0 and 8.1; BK21 - 9.5 and 8.0; BK22 - 9.7 and 8.7; BK23 - 9.8 and 7.9; BK28 - 12.8 and 10.0; and BK31 - 8.4 and 8.0, respectively. The mean (mm2) values found in the mark areas were: Accufilm II - 0.078; BK20 - 0.035; BK21 - 0.045; BK22 - 0.012; BK23 - 0.022; BK28 - 0.024; and BK31 - 0.024. The results were submitted to the Kruskal-Wallis (p<0.05) and Pearson’s correlation tests. Conclusions Only in the 2nd measurement, the OCRS thickness observed was similar to the value indicated by the manufacturers; the Accufilm II and the BK28 strips showed the better marks; and no correlation was found between the thickness and the marking area. .

Thickness and marking quality of different occlusal contact registration strips.

OBJECTIVES: Evaluate the thickness and the marking quality of different occlusal contact registration strips (OCRS) and a possible correlation between them. MATERIAL AND METHODS: The following OCRS were selected: Accufilm II, BK20, BK21, BK22, BK23, BK28, and BK31. The thickness was measured in three points of the OCRS with an electronic measuring device (TESA), and the mean was calculated. To produce the marks on the strips, composite resin specimens were adapted to a universal testing machine (Versat 2000) with 40 kgf load cell at a speed of 1.0 mm/min. The mark images were photographed with a stereoscopic microscope (Stemi SV11) and processed and analyzed by the 550-Leica Qwin analyzer. RESULTS: Values (µm) found in the 1st and 2nd thickness measurements were: Accufilm II - 16.4 and 14.2; BK20 - 10.0 and 8.1; BK21 - 9.5 and 8.0; BK22 - 9.7 and 8.7; BK23 - 9.8 and 7.9; BK28 - 12.8 and 10.0; and BK31 - 8.4 and 8.0, respectively. The mean (mm2) values found in the mark areas were: Accufilm II - 0.078; BK20 - 0.035; BK21 - 0.045; BK22 - 0.012; BK23 - 0.022; BK28 - 0.024; and BK31 - 0.024. The results were submitted to the Kruskal-Wallis (p<0.05) and Pearson's correlation tests. CONCLUSIONS: Only in the 2nd measurement, the OCRS thickness observed was similar to the value indicated by the manufacturers; the Accufilm II and the BK28 strips showed the better marks; and no correlation was found between the thickness and the marking area.

Mechanical properties of direct and indirect composites after storage for 24 hours and 10 months.

OBJECTIVE: The objective of this study was to evaluate the diametral tensile strength (DTS) and Knoop hardness (KH) of direct (Filtek Z350-3M/ESPE and Charisma-Heraeus Kulzer) and indirect composites (Sinfony-3M/ESPE and Signum-Heraeus Kulzer) kept in storage for two periods of time, 24 hours and 10 months, in distilled water. METHODS: Twenty-five specimens of each material were prepared. DTS (n=10) was tested using a universal testing machine (Versat, model 2000) at a crosshead speed of 1.0 mm/min. KH (n=5) was measured using Knoop micro-hardness (HMV-2000; 50 gf for 15 s). All tests were performed 24 hours after polymerization and after 10 months of storage in distilled water at 37°C. The data were statistically analyzed using Kolmogorov-Smirnov, ANOVA and t-Student (P=.05). RESULTS: Filtek Z350, Sinfony, and Signum showed higher DTS values than Charisma after 24 hours. After storage, Sinfony and Signum showed higher DTS values because the storage did not influence the DTS values of the indirect composites. Filtek Z350 showed higher KH values after 24 hours and after storage than other composites; the storage influenced the KH of all composites except Sinfony. CONCLUSION: Storage for 10 months did not influence the properties of the indirect composite Sinfony. In general, the indirect composites showed higher DTS values than direct composites, especially after 10 months storage. The direct composite Filtek Z350 obtained the highest KH values regardless of storage.

Influence of disinfection with peracetic acid and hypochlorite in dimensional alterations of casts obtained from addition silicone and polyether impressions.

Dental impressions disinfection is important to reduce the risk of cross contamination but this process may produce dimensional distortions. Peracetic acid is a disinfectant agent with several favorable characteristics yet underutilized in Dentistry. The aim of this paper is to compare the dimensional stability of casts obtained from addition silicone and polyether impressions that were immersed for 10 minutes in a solution of 0.2% peracetic acid or 1% sodium hypochlorite. Sixty samples in type IV gypsum were produced after a master cast that simulated a full crown preparation of a maxillary premolar. Samples were divided in 6 groups (n = 10) according to the impression material and disinfection agent: Group AC--addition silicone control (without disinfectant); Group APA--addition silicone + 0.2% peracetic acid; Group AH--addition silicone + 1% sodium hypochlorite; Group PC--polyether control (without disinfectant); Group PPA--polyether + 0.2% peracetic acid; Group PH--polyether + 1% sodium hypochlorite. Cast height, base and top diameter were measured and a mean value was obtained for each sample and group all data was statistically analyzed (ANOVA, p < 0.05). There was not a significant statistical difference between addition silicone and polyether impressions regardless of the disinfectant materials. It can be concluded that disinfection with the proposed agents did not produce significant alterations of the impressions and the peracetic acid could be considered a reliable material to disinfect dental molds.

Influence of photoactivation method and mold for restoration on the Knoop hardness of resin composite restorations.

The aim of this study was to evaluate in vitro the Knoop hardness in the top and bottom of composite photo activated by different methods when different mold materials were used. Z250 (3M ESPE) and XL2500 halogen unit (3M ESPE) were used. For hardness test, conical restorations were made in extracted bovine incisors (tooth mold) and also metal mold (approximately 2 mm top diameter × 1.5 mm bottom diameter × 2 mm in height). Different photoactivation methods were tested: high-intensity continuous (HIC), low-intensity continuous (LIC), soft-start, or pulse-delay (PD), with constant radiant exposure. Knoop readings were performed on top and bottom restoration surfaces. Data were submitted to two-way ANOVA and Tukey's test (p = 0.05). On the top, regardless of the mold used, no significant difference in the Knoop hardness (Knoop hardness number, in kilograms-force per square millimeter) was observed between the photoactivation methods. On the bottom surface, the photoactivation method HIC shows higher means of hardness than LIC when tooth and metal were used. Significant differences of hardness on the top and in the bottom were detected between tooth and metal. The photoactivation method LIC and the material mold can interfere in the hardness values of composite restorations.

Influence of diamondlike carbon-coated screws on the implant-abutment interface.

PURPOSE: To evaluate the implant-abutment interface area and the abutment screw loosening value when diamondlike carbon (DLC)-coated or titanium screws were used before and after cyclic loading. MATERIALS AND METHODS: Thirty-six implants were divided into four groups according to the type of connection (external hexagon [EH] or internal hexagon [IH]) and the type of abutment screw (with [EHD/IHD] or without [EHT/IHT] DLC coating). The implants were placed in epoxy resin-glass fiber composite, and crowns cast in a metal alloy were screwed to the implants. The implant-abutment interface was measured before (VG1) and after (VG2) cyclic loading. The removal torque values were recorded. RESULTS: In groups with titanium screws, there was an increase in the implant-abutment interface area from VG1 to VG2, whereas in groups with DLC-coated screws, the interface area was reduced (EHT = 4.49%, IHT = 24.32%, EHD = -1.05%, IHD = -9.95%). In the IHT group only, the implant-abutment interface area showed a statistically significant difference between VG1 and VG2. The Pearson correlation indicated no significant differences among the studied factors, where r = -0.11 for EHT, 0.14 for EHD, 0.07 for IHT, and 0.43 for IHD. CONCLUSIONS: The implant-abutment interface areas in groups with an EH connection were larger than those in groups with an IH connection, regardless of the type of screws used. The screw loosening values decreased in all groups after cyclic loading. No correlation between the implant-abutment interface area and the screw loosening value was seen.

Influence of loading and use of occlusal splint in implant-supported fixed prostheses.

The aim of the study was to assess the tensions generated in the long axis of the implants and the interimplants in the cervical, middle, and apical regions when subjected to different loads with or without interposition of the flat occlusal plane splint. A photoelastic model was made with 2 external hexagon implants located in the space corresponding to the second premolar and molar inferiors. A screw-retained metal superstructure was installed on the implants with a torque of 20 N·cm, and the set (photoelastic model with superstructure) were positioned in the circular polariscope in the dark-field configuration to observe the distribution of isochromatic fringes around the implants and interimplant areas. Photographic records were obtained before the application of the occlusal load with the following loading conditions: 300, 600, and 900 N, with and without interposition of the occlusal plane splint. The decrease in stress with the application of the flat occlusal plane splint became more evident after the application of the 600-N load. Generally, the major stress magnitude occurred in the cervical region for interimplant areas and in the apical region around implants. Use of occlusal splint in the loading of 300, 600, and 900 N reduced tension 33.22%, 66.66%, and 73.33%, respectively, in the samples. It can be concluded that the interposition of the occlusal plane splint caused a reduction in tension resulting from the simulation of occlusal overload.

Root surface treatment using diode laser in delayed tooth replantation: radiographic and histomorphometric analyses in rats.

UNLABELLED: BACKGROUND AIM: The aim of this study was to evaluate, by radiographic and histomorphometric analyses, the effects of high-power diode laser irradiation on the root surfaces of delayed replanted rat teeth. MATERIAL AND METHODS: Maxillary right incisors were extracted from 60 Wistar rats and kept dry for 60 min. Subsequently, the root canals were prepared and filled with calcium hydroxide paste. According to the root surface treatment before the replantation, the teeth were assigned to four groups (n = 15): G1 (negative control) - no root surface treatment; G2 (positive control) - treated with 2% sodium fluoride solution; G3 - irradiated with a high-power diode laser (810 nm, continuous mode, 1.0 W, 30 s); and G4 - irradiated with a diode laser using the same parameters as those used for G3 but in pulsed mode. The rats were euthanized after 15, 30, and 60 days of replantation. The specimens were digitally radiographed and processed for histomorphometric analysis to determine the average root resorption areas and to evaluate the histological events. RESULTS: The percentage of root resorption was in the following order: G1 > G2 > G4 > G3. Both histomorphometric and radiographic analyses showed significantly lower means (P < 0.05) of the occurrence of root resorption in the irradiated groups (G3 and G4) when compared to the control groups (G1 and G2). Replacement resorption and ankylosis were observed in histological sections only after 30 and 60 days; however, such events were not observed in G3. CONCLUSION: Root surface treatments with high-powered diode laser irradiation prior to delayed replantation reduced the occurrence of external root resorption compared to no treatment or sodium fluoride treatment at up to 60 days.

Oral granuloma formation after injection of cosmetic filler.

The increased use of orofacial fillers in cosmetic procedures has led to new diagnostic challenges for dentists and oral pathologists. Here, we describe a case with multiple oral foreign body granulomas, which were formed after a polymethylmetacrylate injection for cosmetic purposes.

Influence of the casting material on the dimensional accuracy of dental dies

The purpose of this study was to evaluate the dimensional accuracy of different materials used in the confection of dies. Two stainless steel standard models were confected. One of the models, which was 2 mm larger than the other model, was used to provide a uniform relief for the two-step putty-wash impression technique. Thirty impressions were obtained using a polyvinyl siloxane impression material and randomly divided into three groups (n = 10) according to the type of casting material: type IV dental stone, commercially available epoxy resin (Tri-Epoxy), and industrial epoxy resin (Sikadur). After the setting/polymerization of the casting material, the dimensional stability was measured in terms of the height, diameter of the base and diameter of the top from the obtained dies and from the standard metal model using a profile projector. Results were analyzed by ANOVA and Dunnet test (α = 0.05). In the height values, no significant difference was observed between the groups, except for Sikadur casts, which showed lower mean values. The Tri-Epoxi group showed statistically lower mean base diameter values, compared with the other groups, and both epoxy resin groups showed statistically lower mean top diameter values, compared with that for the type IV dental stone group. We concluded that type IV gypsum and the commercially available epoxy resin showed similar behavior in most areas. The industrial epoxy resin did not show the same characteristics, although the diameter of the base obtained with it was similar to that obtained with type IV dental stone.

Evaluation of the accuracy of different transfer impression techniques for multiple implants.

The aim of this study was to evaluate the accuracy of three implant transfer impression techniques. Four groups (n = 5) were defined, according to the technique: TC - tapered copings without splint; SC - square copings without splint; SCS - square copings splinted with dental floss and acrylic resin, and CG (control group) - master model with four external hexagonal implants and a superstructure. Individual trays and polyether were used for the impression. All casts were checked for their fit into the master superstructure; for this, all four screws were placed in the implants. Digital photos were taken and images were analyzed using UTHSCSA ImageTool software. Statistical analyses were performed using one-way analysis of variance and Student's t test (p < 0.05). The means and standard deviation were (µm): CG = 2.03 ± 0.00, TC = 14.74 ± 3.41, SC = 12.08 ± 2.56, and SCS = 6.51 ± 0.09. The control group was found to be statistically different from the TC and SC groups. Within the limitations of this study, all groups presented clinically acceptable standard gap values, and the SCS group showed no statistical difference in relation to the CG (control group), demonstrating more accuracy and fidelity to transfer implants.

Avaliação in vitro da resistência ao cisalhamento de três materiais adesivos na colagem de braquetes ortodônticos / In vitro evaluation of strength to shear of three adhesive materials in the collage of orthodontic brackets

Objetivo: Este estudo objetivou avaliar a resistência ao cisalhamento da união esmalte/resina/braquete de três materiais adesivos: Transbond XT (3M Unitek) de uso específico em ortodontia, RelyX ARC (3M) e Enforce (Dentsply). Metodologia: Foram utilizados 60 dentes bovinos incluídos em resina acrílica em tubos de PVC. Os espécimes foram divididos em três grupos de 20, de acordo com o material de cimentação utilizado. Os braquetes foram cimentados aos dentes e, após 24 horas, aferida a resistência ao cisalhamento em uma máquina universal de ensaios Versat 2000, com velocidade de 1 mm/min. e célula de carga de 50 kgf. Os resultados obtidos foram submetidos a análise estatística (ANOVA e teste de Tukey). Resultados: Não foi verificada diferença significativa entre os materiais avaliados (P<0,05). Conclusão: Todas as resinas testadas apresentaram adesividade suficiente para resistir às forças durante o tratamento ortodôntico, constituindo alternativa viável para a cimentação de braquetes ortodônticos

Evaluation of the accuracy of different transfer impression techniques for multiple implants

The aim of this study was to evaluate the accuracy of three implant transfer impression techniques. Four groups (n = 5) were defined, according to the technique: TC - tapered copings without splint; SC - square copings without splint; SCS - square copings splinted with dental floss and acrylic resin, and CG (control group) - master model with four external hexagonal implants and a superstructure. Individual trays and polyether were used for the impression. All casts were checked for their fit into the master superstructure; for this, all four screws were placed in the implants. Digital photos were taken and images were analyzed using UTHSCSA ImageTool software. Statistical analyses were performed using one-way analysis of variance and Student’s t test (p < 0.05). The means and standard deviation were (µm): CG = 2.03 ± 0.00, TC = 14.74 ± 3.41, SC = 12.08 ± 2.56, and SCS = 6.51 ± 0.09. The control group was found to be statistically different from the TC and SC groups. Within the limitations of this study, all groups presented clinically acceptable standard gap values, and the SCS group showed no statistical difference in relation to the CG (control group), demonstrating more accuracy and fidelity to transfer implants.

Necessidade protética da população quilombola de Santo Antônio do Guaporé-Rondônia-Brasil / Prosthetics needs of the Quilombola Population of Santo Antonio Guaporé, Rondônia

As populações remanescentes de quilombos tiveram seu direito à propriedade das terras que ocupam garantido pelo Art.68 dos Atos das Disposições Transitórias da Constituição Federal, de 1988. Entretanto, essas populações ainda enfrentam dificuldades de acesso a serviços essenciais como os de saúde. A proposta desta pesquisa é apresentar dados referentes ao acesso ao serviço odontológico e estimar a necessidade da confecção de prótese dentária na população quilombola de Santo Antônio do Guaporé, Rondônia, Brasil. No presente trabalho foi realizado um estudo transversal seguindo a metodologia sugerida pelo Projeto SB Brasil, Levantamento das Condições de Saúde Bucal da População Brasileira 2003. Foram examinadas 29 pessoas com idade superior a 12 anos. Da amostra total, 62,1% consultaram o dentista pelo menos uma vez; 37,9% consultaram havia mais de três anos e 41,4% foram atendidas no serviço público. Para 58,6% dos examinados, o motivo da consulta foi a dor e 44,8% avaliaram o atendimento como bom. Em relação à necessidade de prótese, 48,3% necessitavam apenas de prótese superior e 72,4% apenas de prótese inferior; 17,2% necessitavam da combinação de próteses removível e fixa superior e 13,8% inferior. Os dados apontam a dificuldade das condições de acesso ao serviço odontológico, bem como a precariedade das condições bucais, marcadas pela necessidade de tratamento reabilitador

The quilombos¹ remaining population had their land property rights guaranteed by article 68 of the 1988 Constitution Transitory Dispositions; however, this population still faces problems of access to essential services like health. The objective of this paper is to present data about access to odontology services and to estimate the need for the making of dental prosthetics for the quilombolas of Santo Antonio do Guaporé, Rondonia. A cross section analysis was developed, according to the methodology proposed by the “Projeto SB Brasil” (SB Brasil Project), Survey of Mouth Health Conditions of Brazilian Population. 29 quilombolas (age:12 years-old and over) were examined. 62,1% of the total sample had attended a dentist at least once; 37.9% had had their last visit to a dentist more than 3 years before. 41.4% had been treated by a public service office. To 58.6%, the reason for having gone to the dentist was “pain” and 44.8% rated care as “Good”. 48.3% needed prosthetics only on the upper jaw; 72.4% only on the lower jaw; 17.2% needed removable and permanent prosthetics on the upper jaw and 13.8% on the lower one. The collected information show the difficult access conditions to odontology assistance, precarious dental conditions and the need for rehabilitation treatment