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1.
Braz Oral Res ; 33: e099, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31778471

RESUMO

The aim of this clinical trial was to compare the 5-year cumulative survival of atraumatic restorative treatment restorations using high-viscosity glass-ionomer restorations (ART/HVGIC) and conventional resin composite restorations (CRT) placed in patients with intellectual and/or physical disability. Patients referred for restorative care to a special care service in Córdoba, Argentina, were recruited. Patients and/or caregivers were provided with written and verbal information regarding treatment options and selected the alternative they preferred. The treatment protocols were ART (hand instruments/HVGIC) in the clinic or CRT (rotary instrumentation/resin composite) in the clinic or under general anaesthesia (GA). Two independent, trained and calibrated examiners evaluated restoration survival using established ART codes after 6, 12, 24, 36 and 60 months. The proportional hazard model with frailty corrections provided survival estimates. Jackknife errors were used to test 5-year results. Sixty-six patients (13.6 ± 7.8 years) with 16 different medical conditions participated. CRT in the clinic proved feasible for five patients (13%), and 14 patients received CRT under GA (21%). ART was provided for 47 patients (71.2%). A total number of 298 dentine carious lesions were restored in primary and permanent teeth (182 ART; 116 CRT). Four patients died between the 3 and 5-year follow up. Percentage survival and jackknife standard error were calculated and were significantly higher for all ART/HVGIC restorations (90.2% ± 2.6) than for all CRT restorations (82.8% ± 5.3), 5 years after placement (p=0.044). These 5-year follow-up results confirm that ART/HVGIC is an effective treatment protocol for patients with disability, equal to that of conventional resin composite restoration. The results of this clinical trial support the use of ART as an evidence-based treatment resource contributing to the reduction of inequalities in access to oral health care among people with disability.


Assuntos
Resinas Compostas/uso terapêutico , Tratamento Dentário Restaurador sem Trauma/métodos , Restauração Dentária Temporária/métodos , Pessoas com Deficiência , Cimentos de Ionômeros de Vidro/uso terapêutico , Adolescente , Adulto , Criança , Pré-Escolar , Resinas Compostas/química , Falha de Restauração Dentária , Feminino , Seguimentos , Cimentos de Ionômeros de Vidro/química , Humanos , Masculino , Reprodutibilidade dos Testes , Fatores de Tempo , Resultado do Tratamento , Viscosidade , Adulto Jovem
2.
J Prosthet Dent ; 121(1): 52-58, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30006223

RESUMO

STATEMENT OF PROBLEM: Cement-retained implant-supported prostheses eliminate screw loosening and enhance esthetics. However, retrievability and the possibility of removing extruded excess cement (EEC) have been problematic. PURPOSE: The purpose of this systematic review was to analyze the effects of modifying the screw access channel (SAC) on the amount of EEC and the retention of cement-retained implant-supported prostheses. MATERIAL AND METHODS: PubMed, Web of Science, Scopus, and Google Scholar databases were searched with appropriate key words. Related titles and abstracts published up to June 2017 were screened and selected on the basis of defined inclusion criteria. Full texts of all studies were read and subjected to quality assessments. After the initial search, 1521 articles were included in the study. Of these, 11 studies were subjected to critical appraisal, and 10 of them were reliable enough in methodology to be systemically reviewed. RESULTS: All the studies were in vitro and described a total of 260 specimens. According to the interpreted results, closed SACs caused lower retention with a higher amount of EEC, whereas open SACs caused the reverse. Also, as the abutment height decreased, retention decreased. CONCLUSIONS: Extending the crown's margin into the SAC, leaving the SAC open, and using internal vents in the SAC space are possible methods of modifying the SAC to gain higher retentive values. Also, the use of internal vents in the SAC system and open or partially filled SAC space reduce the amount of EEC.


Assuntos
Parafusos Ósseos , Cimentos Dentários/efeitos adversos , Implantes Dentários , Retenção em Prótese Dentária/métodos , Prótese Dentária Fixada por Implante/métodos , Coroas , Bases de Dados Factuais , Dente Suporte , Falha de Restauração Dentária , Restauração Dentária Permanente/métodos , Restauração Dentária Temporária/métodos , Estética Dentária , Humanos
3.
Clin Implant Dent Relat Res ; 21(1): 145-153, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30508313

RESUMO

BACKGROUND: Collagen matrices used around immediate implants may reduce morbidity although there is limited evidence on their performance. PURPOSE: To evaluate soft and hard tissue changes when combining immediate implants, hard and soft tissue grafting, and an immediate provisional restoration. MATERIAL AND METHODS: In 12 patients, immediate implants were placed in the anterior maxillary and first premolar area together with a xenogeneic bone substitute. Then a xenogeneic collagen matrix was placed under the buccal mucosal margin with an immediate provisional restoration. Study casts and clinical measurements were taken before extraction (Baseline/BS) at 6 months (6M) and 12 months (1Y) after implant placement. Files from the scanned casts were matched to calculate the linear and volumetric changes at the buccal tissues. Cone Bean Computed Tomographies (CBCTs) were taken prior to extraction and at 6M. The superimposed DICOM files allowed for assessing hard tissue changes and the superimposition of DICOM and STL files allowed for evaluating of soft tissue thickness at BS and 6M. RESULTS: After 6 months, the horizontal tissue contours decreased 0.66 ± 0.57 mm, concomitant with a horizontal bone loss of 1.31 ± 1.32 mm, measured 1 mm below the most coronal aspect of the ridge. In contrast, the soft tissue thickness, 1 mm below the gingival margin, increased 0.75 ± 1.12 mm. At 1-year, tissue contours had decreased 1.01 ± 0.67 mm compared to BS reaching statistical significance. The mean volume loss after 1Y was 20.43 ± 11.70 mm3 while the mean mucosal margin recession was 0.86 ± 0.67 mm. These changes had a limited clinical impact as the PES Scores remained stable. CONCLUSIONS: The tested protocol resulted in a significant reduction of the tissue contours and osseous ridge dimensions that was partially compensated by a non-significant increase in soft tissue thickness.


Assuntos
Colágeno/uso terapêutico , Restauração Dentária Temporária/métodos , Carga Imediata em Implante Dentário/microbiologia , Periodonto/cirurgia , Adulto , Idoso , Processo Alveolar/diagnóstico por imagem , Processo Alveolar/cirurgia , Substitutos Ósseos/uso terapêutico , Tomografia Computadorizada de Feixe Cônico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Periodonto/diagnóstico por imagem , Estudos Prospectivos
4.
J Appl Oral Sci ; 27: e20180183, 2018 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-30540074

RESUMO

OBJECTIVES: This study investigated the physical and mechanical properties, antibacterial effect and biocompatibility of novel elastomeric temporary resin-based filling materials (TFMs) containing zinc methacrylate (ZM). MATERIAL AND METHODS: Experimental TFMs were prepared by mixing the zinc methacrylate with monomer, co-monomer, photoinitiator and fillers. A ZM concentration of 0 (control), 0.5% (Z0.5); 1% (Z1), 2% (Z2), or 5% (ZM5) wt% was added to the TFMs. Fermit-N (F) was used for comparison with the experimental material. Microleakage, water sorption/solubility, degree of conversion, depth of cure, ultimate tensile strength, and hardness were determined and compared. A modified direct contact test (DCT) with Enterococcus faecalis and a Streptococcus mutans' biofilm accumulation assay was carried out to evaluate the antimicrobial effect and cytotoxicity of the assay. Statistical comparisons were performed (α=5%). RESULTS: The results showed that the physical and mechanical properties of the experimental TFMs with ZM are comparable with the properties of the commercial reference and some properties were improved, such as lower microleakage and water sorption, and higher ultimate tensile strength values. TFMs with ZM killed E. faecalis only after 1 h. Biofilm development of S. mutans was not affected by the inclusion of ZM in the experimental TFMs. CONCLUSIONS: The present findings suggest that the physical, mechanical and biological properties of the experimental TFMs with ZM are comparable with the properties of the commercial reference. However, some properties were improved, such as lower microleakage and water sorption, and higher ultimate tensile strength values.


Assuntos
Resinas Compostas/química , Restauração Dentária Temporária/métodos , Elastômeros/química , Metacrilatos/química , Zinco/química , Animais , Antibacterianos/farmacologia , Bovinos , Contagem de Colônia Microbiana , Resinas Compostas/farmacologia , Infiltração Dentária , Elastômeros/farmacologia , Enterococcus faecalis/efeitos dos fármacos , Testes de Dureza , Teste de Materiais , Metacrilatos/farmacologia , Distribuição Aleatória , Valores de Referência , Reprodutibilidade dos Testes , Solubilidade , Streptococcus mutans/efeitos dos fármacos , Resistência à Tração , Fatores de Tempo , Zinco/farmacologia
5.
Artigo em Inglês | MEDLINE | ID: mdl-30113609

RESUMO

Immediate implant placement and provisional restoration has become a popular and well-supported method of tooth replacement in the maxillary anterior dentition. Aside from achieving osseointegration, esthetic demands have grown with better understanding of the behavior of hard and soft tissues following this mode to therapy. Stability of gingival contours, texture of the surrounding tissues, and blending of prosthetic components with the natural dentition are critical for successful outcomes to be maintained long-term. Increasing soft tissue thickness at the time of therapy plays an important role in this regard. A technique combining the proven principles of immediate implant placement and provisional restoration with hard and soft tissue augmentation using nonautogenous materials is demonstrated with comparisons to nongrafted, temporized historical controls.


Assuntos
Aumento do Rebordo Alveolar/métodos , Implantação Dentária Endo-Óssea/métodos , Implantes Dentários , Restauração Dentária Temporária/métodos , Carga Imediata em Implante Dentário/métodos , Periodonto/patologia , Idoso , Enxerto de Osso Alveolar/métodos , Prótese Dentária Fixada por Implante/métodos , Derme/transplante , Feminino , Gengiva/patologia , Gengiva/cirurgia , Humanos , Periodonto/cirurgia
6.
J Appl Oral Sci ; 26: e20170562, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30133673

RESUMO

The objective of this study was to compare selective physical-mechanical properties, antibacterial effects and cytotoxicity of seven temporary restorative materials (TRM): five resin-based materials [Bioplic (B), Fill Magic Tempo (FM), Fermit inlay (F), Luxatemp LC (L) and Revotek LC (R)], and zinc oxide-eugenol cement (IRM) and glass ionomer cement (GIC) as the controls. Material and methods The physical-mechanical properties were evaluated by determining microleakage (ML), ultimate tensile strength (UTS) and Shore D hardness (SDH). In addition, the polymerization rate (Pr-1), depth of cure (DC), water sorption and solubility (WS/SL) were evaluated. The antimicrobial effects of the materials were assessed by biofilm accumulation of Streptococcus mutans (BT) and the direct contact test (DCT) by exposure to Enterococcus faecalis for 1 and 24 h, and cytotoxicity by MTT assay. The data were analyzed by ANOVA or Kruskall-Wallis tests, and a complementary post-hoc method (p<0.05). Results Group B, followed by FM and GIC had significantly lower percentages of microleakage in comparison with the other groups; Groups FM and L showed the highest WS, while Groups R and FM showed the significantly lowest SL values (p<0.05). Group R showed the statistically highest UTS mean and the lowest DC mean among all groups. Group F showed the lowest S. mutans biofilm accumulation (p=0.023). Only the Group L showed continued effect against E. faecalis after 1 h and 24 h in DCT. The L showed statistically lower viability cell when compared to the other groups. Conclusions These findings suggest the antibacterial effect of the temporary materials Fill Magic and Bioplic against S. mutans, while Luxatemp showed in vitro inhibition of S. mutans biofilm accumulation and E. faecalis growth. Regarding the cell viability test, Luxatemp was the most cytotoxic and Fill Magic was shown to be the least cytotoxic.


Assuntos
Antibacterianos/química , Antibacterianos/farmacologia , Resinas Compostas/química , Resinas Compostas/farmacologia , Enterococcus faecalis/efeitos dos fármacos , Fibroblastos/efeitos dos fármacos , Streptococcus mutans/efeitos dos fármacos , Animais , Bis-Fenol A-Glicidil Metacrilato/química , Bis-Fenol A-Glicidil Metacrilato/farmacologia , Bovinos , Sobrevivência Celular/efeitos dos fármacos , Infiltração Dentária , Restauração Dentária Temporária/métodos , Cimentos de Ionômeros de Vidro/química , Cimentos de Ionômeros de Vidro/farmacologia , Testes de Dureza , Teste de Materiais , Metilmetacrilatos/química , Metilmetacrilatos/farmacologia , Camundongos , Ácidos Polimetacrílicos/química , Ácidos Polimetacrílicos/farmacologia , Reprodutibilidade dos Testes , Materiais Restauradores do Canal Radicular/química , Materiais Restauradores do Canal Radicular/farmacologia , Solubilidade , Resistência à Tração , Fatores de Tempo , Cimento de Óxido de Zinco e Eugenol/química , Cimento de Óxido de Zinco e Eugenol/farmacologia
7.
Clin Implant Dent Relat Res ; 20(5): 674-682, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30092115

RESUMO

BACKGROUND: Resorption of hard and soft tissues following immediate implant insertion is frequently reported. Data regarding the influencing factors on facial tissue thickness are rare. PURPOSE: This retrospective study investigated the impact of connective tissue grafting, the orofacial angulation and position of immediately inserted and provisionalized implants on the facial hard and soft tissue thickness in the anterior maxilla within a 1- to 5-year follow-up. MATERIAL AND METHODS: Implants with the prerequisite of having preoperative and postoperative cone beam computed tomography (CBCT) and a follow-up of 1 to 5 years were included. Facial bone deficiencies were grafted flaplessly with autogenous bone in all sites. In a subgroup of implants additional connective tissue grafting was performed, whereas the remaining implants were not grafted with soft tissue. The orofacial tooth and implant angulation, the change of horizontal position and the facial bone thickness were measured by CBCT, the facial mucosa thickness by an ultrasonic device. RESULTS: In total, 76 implants were placed in 55 patients. Sixty-nine sites showed a facial bone defect. Thirty-eight received a connective tissue graft additionally. All implants were still in function after a mean follow-up of 36 months. The mean thickness of the facial mucosa was 1.72 mm at 1 mm, 1.63 mm at 4 mm, 1.52 mm at 6 mm, and 1.66 mm at 9 mm apically to mucosal margin. The bone thickness was 0.02, 0.25, and 0.36 mm initially and 1.32, 1.26, and 1.11 mm finally at 1, 3, and 6 mm apically to implant shoulder level. Mixed model analysis revealed an impact of the preoperative bone status on the facial bone increase. The facial soft tissue thickness was significantly influenced by the gingival biotype. CONCLUSIONS: The results indicate that an initial severe hard tissue defect allows for significant bone regeneration. The facial soft tissue thickness is primarily influenced by the gingival biotype.


Assuntos
Implantação Dentária Endo-Óssea/métodos , Carga Imediata em Implante Dentário/métodos , Periodonto/patologia , Adolescente , Adulto , Idoso , Processo Alveolar/diagnóstico por imagem , Processo Alveolar/patologia , Tomografia Computadorizada de Feixe Cônico , Implantação Dentária Endo-Óssea/efeitos adversos , Restauração Dentária Temporária/efeitos adversos , Restauração Dentária Temporária/métodos , Feminino , Humanos , Carga Imediata em Implante Dentário/efeitos adversos , Masculino , Maxila , Pessoa de Meia-Idade , Mucosa Bucal/diagnóstico por imagem , Mucosa Bucal/patologia , Mucosa Bucal/cirurgia , Periodonto/diagnóstico por imagem , Periodonto/cirurgia , Periodonto/transplante , Estudos Retrospectivos , Adulto Jovem
8.
J Prosthet Dent ; 120(4): 495-497, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29703668

RESUMO

Transferring the soft tissue around an interim implant-supported fixed partial denture to the definitive cast is difficult. A technique that can accurately record the soft tissue configuration when making an impression for an implant-supported fixed partial denture is described.


Assuntos
Técnica de Moldagem Odontológica , Prótese Dentária Fixada por Implante/métodos , Restauração Dentária Temporária/métodos , Prótese Parcial Fixa , Gengiva/anatomia & histologia , Técnica de Fundição Odontológica , Planejamento de Dentadura/métodos , Humanos
9.
Artigo em Inglês | MEDLINE | ID: mdl-29447308

RESUMO

This article describes a simplified technique for relining provisional prostheses on natural abutments that can be applied to this specific type of tooth preparation with feather-edge finish line. Starting from a diagnostic wax-up, a provisional fixed restoration is constructed, containing all the correct structural information. This includes the controlled depth of the prosthetic margin into the gingival sulcus, the emergence profile, and the area from the emergence profile to the gingival third. Chair time is saved during the clinical procedures because the finishing and polishing steps are shortened, and the resulting provisional restoration is precise and highly biocompatible. This technique allows for a simple and quick relining and finishing procedure and for the delivery of an esthetic and biocompatible provisional restoration.


Assuntos
Dente Suporte , Restauração Dentária Temporária/métodos , Projeto do Implante Dentário-Pivô , Prótese Dentária Fixada por Implante , Humanos
10.
Cient. dent. (Ed. impr.) ; 14(2): 115-122, mayo-ago. 2017. ilus
Artigo em Espanhol | IBECS | ID: ibc-165675

RESUMO

La excelencia estética en los implantes del sector anterior sigue siendo un reto para los profesionales, además de una exigencia de nuestros pacientes. Para ello, un correcto diagnóstico y la utilización de técnicas para la preservación de los tejidos duros y blandos, una extracción meticulosa, el mantenimiento de los perfiles de emergencia mediante el uso de injertos de tejido conectivo y provisionales inmediatos, son fundamentales para conseguir una estética adecuada y la armonía de los tejidos periimplantarios. Se presenta el caso de una mujer de 57 años que refiere haber sufrido un traumatismo en el incisivo central superior izquierdo. El examen clínico y radiológico reveló una fractura horizontal a nivel del tercio coronal de la raíz sin pérdida ósea. Por lo que se planificó la colocación de un implante postextracción. Para la preservación de los tejidos se realizó un relleno con un sustituto óseo, un injerto de tejido conectivo del paladar tunelizado por vestibular y para el mantenimiento de la arquitectura gingival se llevó a cabo una provisionalización inmediata con su propia corona (AU)


Aesthetics excellency outcomes in anterior sector implants still is a challenge for professionals and is also the patient requirement. To ensure this, a correct diagnostic, the use of techniques to preserve the soft and hard tissues, a meticulous extraction, the use of connective tissues graft to maintain the emergence profiles and use immediate provisionalization are essential to keep the esthetics armory of periimplant tissues. In a presented case of a 57 year old woman, with an upper central incisor injury, the clinical and radiological examinations show a horizontal fracture in the upper third without any bone lost. An immediate implant was planned, bone substitute was used to tissue preservation, and a tunneling technique with a connective tissue graft taken from palatal. her own crown was use to keep the gingival architecture as an immediate restoration (AU)


Assuntos
Humanos , Feminino , Pessoa de Meia-Idade , Estética Dentária , Implantação Dentária/métodos , Retalhos Cirúrgicos , Tecido Conjuntivo/transplante , Restauração Dentária Temporária/métodos , Traumatismos Dentários/cirurgia , Resultado do Tratamento
11.
J Clin Pediatr Dent ; 41(4): 308-311, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28650778

RESUMO

OBJECTIVE: To present comparative study aims to assist the practitioner to choose between behavior modification (BM) techniques, pharmacologic sedation (N2O-O2 alone or combined with midazolam 0.5 mg/ kg) or routine general anesthesia (GA) for the most successful approach in enabling pediatric dental care. STUDY DESIGN: Dental records of 56 children treated in a university dental clinic between 2006-2016 were reviewed, and data on age, gender, required treatment (amalgam restorations, composite restorations, pulpotomy, and stainless steel crowns [SSC]), treatment approaches and therapeutic success at final follow-up were retrieved. RESULTS: Treatment under GA had the best success rates compared to both BM and pharmacologic sedation. N2O-O2 alone had a 6.1-fold greater risk of failure compared to N2O-O2+midazolam (p- <0.008). Amalgam restorations had a 2.61-fold greater risk of failure than SSC (p- <0.008). CONCLUSIONS: The GA mode yielded significantly greater success than the N2O-O2 mode alone. There were no significant differences in success rates between GA and combined midazolam 0.5 mg/kg+N2O-O2. When choosing restoration material, it is important to remember the high success rate of SSC compared to amalgam restoration.


Assuntos
Anestesia Geral/métodos , Terapia Comportamental/métodos , Sedação Consciente , Assistência Odontológica para Crianças/métodos , Criança , Pré-Escolar , Coroas , Restauração Dentária Temporária/métodos , Feminino , Humanos , Masculino , Pulpotomia/métodos , Aço Inoxidável
12.
J Clin Pediatr Dent ; 41(4): 264-270, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28650785

RESUMO

OBJECTIVES: The present preliminary study evaluated the clinical and radiographic performances of heat-cured high viscosity glass ionomer (HCHVGI) in class II restorations of primary molars. STUDY DESIGN: A retrospective study on a cohort of patients who had dental caries restored at a private practice was conducted. Restorations were evaluated radiographically and photographically by two separate examiners. RESULTS: Ninety-three Class II restorations in 44 patients (average age: 108 months ± 25.3, 24 males, 20 females) were examined. Average recall time was 22.2 months ± 4.2. All but three restorations (96.8%) were present and intact, with no incidents of secondary caries. Three additional restorations had occlusal defects that required retreatment, resulting in an overall success rate of 93.5%. Ninety-seven percent of the restorations were rated optimal for marginal integrity with no staining of the restoration surfaces. No patients complained of post-operative sensitivity. The most common flaw found was a concavity on the proximal wall of the cavity box (27%, mean age 16 months ± 3.9). CONCLUSION: The findings in this preliminary study suggest that heat cured high viscosity glass ionomer cement may be an effective restorative material for Class II restorations in primary molars that are a year or two from shedding.


Assuntos
Cárie Dentária/terapia , Restauração Dentária Temporária/métodos , Cimentos de Ionômeros de Vidro/uso terapêutico , Dente Molar , Criança , Falha de Restauração Dentária , Seguimentos , Humanos , Masculino
13.
Compend Contin Educ Dent ; 38(2): 114-119, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28156125

RESUMO

This article presents the results of a scanning electron microscope (SEM) analysis of the surface of an acrylic custom provisional abutment following first disconnection from a post-extraction immediate implant placement. An implant was placed immediately after extraction, the site was grafted, and a barrier membrane was adapted for graft containment. A custom acrylic shell was then relined, polished, and steam-cleaned prior to being screwed onto the implant. After 5 months of undisturbed healing, the custom provisional abutment was disconnected for the first time and processed for SEM examination. The surface of the custom acrylic abutment revealed well-spread fibroblast-like cells with filopodia inserting into the porous surface. These observations suggest that the surface topography of the acrylic provisional restoration/ abutment can function as a substratum for cellular adhesion and may serve an important role in supporting peri-implant mucosa at the time of immediate implant placement.


Assuntos
Adesão Celular , Dente Suporte , Restauração Dentária Temporária/métodos , Mucosa Bucal/ultraestrutura , Acrilatos , Idoso de 80 Anos ou mais , Humanos , Masculino , Microscopia Eletrônica de Varredura , Extração Dentária
14.
J Prosthet Dent ; 118(3): 264-267, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28222868

RESUMO

A digital technique is presented that records peri-implant soft tissue contours and the emergence profile. The architecture of interim restorations and adjacent teeth, the position of the implant, and the emergence profile of interim prostheses are scanned and registered to design a zirconia frame and to form a digital cast.


Assuntos
Desenho Assistido por Computador , Técnica de Moldagem Odontológica , Restauração Dentária Temporária/métodos , Materiais para Moldagem Odontológica , Modelos Dentários , Humanos
15.
Implant Dent ; 26(1): 12-23, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28114240

RESUMO

PURPOSE AND OBJECTIVE: The aim of this in vitro study was to investigate the ability of epithelial cells to attach to or proliferate on various mechanical or chemical surface treatments of an implant provisional material. MATERIALS AND METHODS: Polyethyl methacrylate discs 10 mm in diameter and ∼0.2 to 0.75 mm in width were used in the study. Experimental discs were treated with either a mechanical (pumice, varnish for shine, or high polishing) or a chemical agent (alcohol, chlorhexidine, or steam) to provide cleaning and/or polishing. Using primary human epidermal keratinocytes, experiments were performed to test the adhesion or proliferation of cells on the discs with various surface treatments. RESULTS: Scanning electron microscope analysis, rhodamine staining, and cell counting using a hemocytometer corroborated all findings and illustrated that the highest cell adhesion was found to be in the smooth surface treatment groups and the poorest adhesion was found to be in the rough surface groups and chemical treatment group. CONCLUSION: Within the limitations of this study, the following clinical protocol is recommended for finishing, polishing, and disinfecting implant provisional restorations: coarse, medium, fine pumice → high polishing (if desired) → steam. It is recommended to avoid applying varnish in the perimucosal area near the epithelium. This study could establish the most appropriate way to handle provisional restorations in the peri-implant sulcus for improved soft tissue health, esthetics, and long-term stability.


Assuntos
Adesão Celular/fisiologia , Proliferação de Células/fisiologia , Implantes Dentários , Restauração Dentária Temporária/métodos , Queratinócitos/fisiologia , Polimento Dentário , Humanos , Técnicas In Vitro , Microscopia Eletrônica de Varredura , Polimetil Metacrilato
16.
J Prosthodont ; 26(4): 331-338, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26805651

RESUMO

Dental implants have become a popular treatment modality for replacing missing teeth. In this regard, the importance of restoring patients with function during the implant healing period has grown in recent decades. Esthetic concerns, especially in the anterior region of the maxilla, should also be considered until the definitive restoration is delivered. Another indication for such restorations is maintenance of the space required for esthetic and functional definitive restorations in cases where the implant site is surrounded by natural teeth. Numerous articles have described different types of interim prostheses and their fabrication techniques. This article aims to briefly discuss all types of implant-related interim prostheses by different classification including provisional timing (before implant placement, after implant placement in unloading and loading periods), materials, and techniques used for making the restorations, the type of interim prosthesis retention, and definitive restoration. Furthermore, the abutment torque for such restorations and methods for transferring the soft tissue from interim to definitive prostheses are addressed.


Assuntos
Restauração Dentária Temporária/métodos , Prótese Parcial Removível , Prótese Parcial Temporária , Dente Suporte , Implantes Dentários , Estética Dentária , Humanos
17.
Implant Dent ; 25(6): 861-865, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27824718

RESUMO

PURPOSE: The purpose of the presented technique is to enable the clinician to replicate the contours of the interim prosthesis. MATERIALS AND METHODS: A clinical case report is presented where this novel technique was implemented. A stone base and a silicone index were used to duplicate the contours of an interim prosthesis, so that the definitive restoration can have similar contours. RESULTS: The definitive prosthesis was fabricated based on the acquired soft tissue architecture and the contours of the interim restoration. CONCLUSION: The presented technique may assist clinicians in replicating the contours of interim restorations into the definitive prosthesis.


Assuntos
Coroas , Técnica de Moldagem Odontológica , Prótese Dentária Fixada por Implante , Materiais para Moldagem Odontológica , Restauração Dentária Temporária/métodos , Humanos
18.
Eur J Paediatr Dent ; 17(3): 234-238, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27759414

RESUMO

BACKGROUND: Optimal integration and long-term stability of oral rehabilitations require correct diagnostic approach, appropriate pre-prosthetic treatments and accurate therapeutic protocols. Technology provides devices to optimise therapeutic results, according to biologic constraints and aesthetic parameters. CASE REPORT: The present report describes a multidisciplinary management in a young patient affected by lateral incisor agenesis, including pre-prosthetic orthodontic treatment and restorative and implant-supported prosthetic rehabilitation. Minimally invasive clinical procedures with veneer restorations and flapless implant placement, followed by immediate prosthesis delivery, are carried out. Tridimensional diagnostic data and dedicated software were used for treatment planning, allowing to achieve optimal results.


Assuntos
Anodontia/terapia , Estética Dentária , Incisivo/anormalidades , Planejamento de Assistência ao Paciente , Equipe de Assistência ao Paciente , Adolescente , Coroas , Implantação Dentária Endo-Óssea/métodos , Implantes Dentários para Um Único Dente , Restauração Dentária Temporária/métodos , Feminino , Seguimentos , Humanos , Carga Imediata em Implante Dentário/métodos , Técnicas de Movimentação Dentária/métodos
19.
Compend Contin Educ Dent ; 37(8): 560-6, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27608200

RESUMO

When patients are constrained financially to receive dental work, a staged approach can be an effective way for enabling treatment to proceed. In this case, a patient who had been in the practice for about 10 years and had a severely worn and eroded dentition finally opted to receive treatment in stages. A systematic approach was used to determine the proper postoperative position of the teeth. The subsequent treatment plan included the use of porcelain onlays and full-coverage crowns in the mandibular posterior along with provisional direct composite restorations in the maxillary dentition; the composites would be transitioned to porcelain crowns as the patient's finances would allow.


Assuntos
Coroas , Restauração Dentária Permanente/métodos , Restauração Dentária Temporária/métodos , Restaurações Intracoronárias/métodos , Desgaste dos Dentes/cirurgia , Porcelana Dentária , Restauração Dentária Permanente/economia , Restauração Dentária Temporária/economia , Humanos , Masculino , Pessoa de Meia-Idade
20.
J Contemp Dent Pract ; 17(4): 344-6, 2016 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-27340171

RESUMO

AIM: To make use of fiber-reinforced composite and the patient's own extracted teeth in fabricating a provisional restoration following immediate implant placement. BACKGROUND: Fiber-reinforced composites offer various possibilities in temporization of osseointegrating implants in the esthetic zone. TECHNIQUE: In this chairside technique, the patient's own extracted teeth with fiber-reinforced composite were used to fabricate a provisional restoration after immediate implant placement. CONCLUSION: A putty index was made before extracting the teeth and placing the implants as planned. The index and crowns of the extracted teeth were used to make a nonloading, esthetic, chair-side provisional restoration after immediate implant placement. CLINICAL SIGNIFICANCE: By using the patient's own teeth for pro-visionalization immediately after implant placement, acceptance is greatly enhanced.


Assuntos
Implantes Dentários , Restauração Dentária Temporária/métodos , Estética Dentária , Humanos
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