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1.
Compend Contin Educ Dent ; 41(8): e1-e9, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32870701

RESUMO

With the incidence of failed and ailing dental implants increasing, the authors conducted research to evaluate and characterize all known criteria used in the assessment of implant health in the clinical setting. A review of articles found in electronic databases was performed. Once all parameters for implant assessment as supported by current literature were selected, implant assessment documents were created: a data acquisition form and a quantitative comprehensive evaluation. These documents provide the clinician an algorithm that yields a prognosis of survival for each implant. Diagnostic criteria were organized to offer a comprehensive assessment of risk factors related to implant health. Data acquisition prior to establishing the prognosis is necessary in accordance with the staging system developed. Parameters for diagnosis and staging include a thorough medical/social history of the patient, implant history, and clinical evaluation. The authors concluded that the establishment of parameters for comprehensive implant evaluation in the clinical setting is feasible. This assessment process enables an effective clinical approach to evaluate and treat ailing implants while facilitating a clinical diagnostic algorithm.


Assuntos
Implantes Dentários , Falha de Restauração Dentária , Humanos , Prognóstico
2.
Int J Periodontics Restorative Dent ; 40(5): e189-e196, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32925993

RESUMO

Dental implants are intended to provide long-term reliable dental restorations. Limited data exist on the comparison between different implant surfaces. This study aims to clarify whether there is a difference between airborne particle- abraded and acid-etched (SLA implants) and only acid-etched surfaces (Osseotite) in healthy and periodontally compromised patients. After comprehensive evaluation of all 109 patients, including nonsurgical and surgical therapy for the treatment of periodontal disease, 109 implants were placed according to the manufacturer's guidelines. Each treatment site was examined radiographically 3 to 6 months after the final coronal restorations were placed. Patients were enrolled in the follow-up maintenance program, and radiologic evaluations were carried out at 5 and 10 years. Data recorded from 91 patients who completed the final 10-year follow-up were included in the analysis (SLA: n = 50; Osseotite: n = 41). At 10 years, the difference between bone-to-implant distances (DIBs) for SLA and Osseotite was significantly different (P = .001; 95% confidence interval: 0.55, 1.89 mm). Mean ± SD DIB for SLA implants was 2.1 ± 1.1 mm and 0.9 ± 2.1 mm for Osseotite implants. The overall survival rates of SLA and Osseotite implant surfaces were high during the observation period. History of previous periodontal disease plays an important role in the incidence of complications, regardless of the surface type.


Assuntos
Implantes Dentários , Implantação Dentária Endo-Óssea , Planejamento de Prótese Dentária , Falha de Restauração Dentária , Humanos , Osseointegração , Estudos Prospectivos , Propriedades de Superfície , Titânio
3.
Artigo em Inglês | MEDLINE | ID: mdl-32925998

RESUMO

The aim of this retrospective study was to evaluate clinical and radiographic outcomes of guided bone regeneration (GBR) procedures in the rehabilitation of partially edentulous atrophic arches. A total of 58 patients were included with a follow-up of 3 to 7 years after loading. Data seem to indicate that GBR with nonresorbable membranes can be a good clinical choice and suggest that it could be used to vertically reconstruct no more than 6 mm of bone in the posterior mandible. However, this technique remains difficult and requires expert surgeons.


Assuntos
Perda do Osso Alveolar , Implantes Dentários , Regeneração Óssea , Implantação Dentária Endo-Óssea , Prótese Dentária Fixada por Implante , Falha de Restauração Dentária , Seguimentos , Humanos , Membranas Artificiais , Estudos Retrospectivos
4.
Artigo em Inglês | MEDLINE | ID: mdl-32926001

RESUMO

Clinical records of patients who underwent implant-supported rehabilitation according to the biologically oriented preparation technique (BOPT) principles were retrospectively analyzed. Records of 189 nonconsecutive patients who received 502 implants were reviewed. At the last follow-up visit (occurring on average 5.11 years after prosthesis delivery), 466 (92.8%) implants had a Gingival Index of 0, and 491 (97.8%) presented no bleeding on probing. Four hundred eighty-nine crowns on as many implants (97.4%) showed no sign of gingival recession. Technical complications occurred with 10 implants (2.0%) and 6 patients (3.2%). Biologic complications were detected with 14 implants (2.8%) and 6 patients (3.2%). When the BOPT approach is applied to rehabilitate patients using implant-supported prostheses, excellent medium-term results concerning soft tissue health may be achieved.


Assuntos
Implantes Dentários , Prótese Dentária Fixada por Implante , Coroas , Falha de Restauração Dentária , Seguimentos , Humanos , Estudos Retrospectivos , Resultado do Tratamento
5.
J Evid Based Dent Pract ; 20(3): 101466, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32921386

RESUMO

ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION: Medication-related dental implant failure: Systematic review and meta-analysis. Chappuis V, Avila-Ortiz G, Araújo MG, Monje A. Clin Oral Implants Res 2018;29 Suppl 16:55-68. SOURCE OF FUNDING: None. The authors declared no conflict of interest. TYPE OF STUDY/DESIGN: Systematic review with meta-analysis.


Assuntos
Implantes Dentários , Inibidores da Bomba de Prótons , Implantação Dentária Endo-Óssea , Falha de Restauração Dentária , Humanos , Inibidores de Captação de Serotonina
6.
Int J Prosthodont ; 33(5): 493-502, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32956430

RESUMO

PURPOSE: To describe and analyze the restorative complications of long-span (> three units) implant-supported dental prostheses (LIDPs) in 27 private practices in the state of Victoria, Australia, during the period from January 1, 2005, to December 31, 2009. MATERIALS AND METHODS: Private dental practitioners providing implant treatment were invited to enroll in this study, which was conducted through a dental practice-based research network. Clinical records of the implant treatments, which were provided during the specified period, were accessed for data collection. LIDPs included implant-supported prostheses of fixed or removable design; namely, fixed partial dentures (IFPDs), fixed complete dentures (IFCDs), removable partial dentures (IRPDs), and complete overdentures (IODs). Descriptive statistics and generalized linear mixed modeling were used for data analysis. RESULTS: The range of observation time for 627 LIDPs was 3 to 72 months (mean ± SD: 3.22 ± 1.49 years). For fixed prostheses, the complication with the highest annual rate was veneer fracture (acrylic: 21%; ceramic: 2.9%), followed by loss of retention for cement-retained IFPDs (14.7%). For mandibular IODs, the highest annual complication rate was for retention complications, whereas for maxillary IODs, it was for acrylic veneer fracture (11.5% and 6.4%, respectively). The peak incidence of complications was during the first year of function in fixed protheses and in IODs. Acrylic veneer fracture in IFCDs and IOD base fracture were more common in patients with preoperative clinician-reported attrition (estimated odds ratios [ORs] = 4.5 and 11.3, respectively; P < .05). Ceramic veneer fracture in fixed protheses and acrylic veneer fracture in IODs were reported more commonly for maxillary compared to mandibular prostheses (ORs = 5 and 22, respectively; P < .05). Mandibular IODs had more frequent retention complications when supported by two compared to four implants (OR = 5.9, P < .05). CONCLUSION: Restorative complications were observed in all categories of LIDPs at various annual rates. Clusters of these complications occurred during the first year of prosthesis function. Patient- and prosthesis-related variables influenced the incidence rate of some of these complications.


Assuntos
Implantes Dentários , Prótese Dentária Fixada por Implante , Falha de Restauração Dentária , Odontólogos , Seguimentos , Humanos , Prática Privada , Papel Profissional , Estudos Retrospectivos
7.
Int J Prosthodont ; 33(5): 503-512, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32956431

RESUMO

PURPOSE: To assess the clinical outcomes of single-retainer resin-bonded fixed dental prostheses (RBFDPs) and the profilometric changes of pontic sites after a mean of 10 years in function. MATERIALS AND METHODS: Ten patients (mean age 32.4 years) who had received an RBFDP replacing a single anterior tooth were recalled after 10 years. Five patients had received a subepithelial connective tissue graft (SCTG) at the pontic site. The clinical assessment comprised the following parameters: probing depth, bleeding on probing, modified plaque control record, gingival recession, measurement of the width of keratinized mucosa, and intraoral photographs and radiographs. The modified criteria of the United States Public Health Services evaluation system were applied. Additionally, patient satisfaction was recorded. Data were analyzed descriptively, and the 10-year RBFDP survival rates were calculated using Kaplan-Meier analysis. RESULTS: The RBFDP survival rate after a mean follow-up of 10.0 years (range 7.4 to 13.3 years) was 100%. Neither technical failures nor biologic complications were observed. All abutment teeth remained vital, and no secondary caries were detected. Between baseline and follow-up examinations, the profilometric changes at the pontic sites were minimal, exhibiting a loss of -0.03 ± 0.10 mm (no SCTG) and 0.00 ± 0.37 mm (SCTG). CONCLUSION: The present study exhibited high survival rates and low complication rates of the restorations, as well as excellent profilometric stability of the pontic sites over 10 years. The use of an RBFDP is a viable long-term treatment option for replacing a single anterior tooth.


Assuntos
Cerâmica , Zircônio , Adulto , Falha de Restauração Dentária , Prótese Parcial Fixa , Humanos , Taxa de Sobrevida
8.
Chin J Dent Res ; 23(3): 215-220, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32974622

RESUMO

The main goal of this report was to solve a clinical case of a 73-year-old man with diabetes, partial edentulism and a pathological occlusion with biocorrosion using conservative and adhesive techniques. A complete rehabilitative treatment was performed, increasing the vertical dimension of occlusion using indirect restorations with composite resins on teeth and resin crowns on implants and returning function using mutually protected occlusion. A 6-month posttreatment clinical and radiographic follow-up was performed.


Assuntos
Falha de Restauração Dentária , Estética Dentária , Idoso , Resinas Compostas , Coroas , Planejamento de Prótese Dentária , Humanos , Masculino , Dimensão Vertical
9.
Int J Oral Maxillofac Implants ; 35(5): 974-981, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32991648

RESUMO

PURPOSE: The aim of this retrospective clinical case series report was to evaluate the outcomes of patients who underwent zygomatic implant surgery with a recent technical modification of the extrasinus surgical protocol. MATERIALS AND METHODS: The implant system presented in this study had a novel designed unthreaded body with a 12.5-mm sharp threaded apical end for obtaining maximum retention to the zygomatic bone. A total of 92 patients with severely atrophic maxillae were included in this study. All the patients were treated with a modification of the extrasinus protocol for insertion of 261 zygomatic implants. The mean follow-up of the patients was 34.5 ± 17.1 (SD) months (range: 6 to 72 months). The implant survival rate was the primary outcome. The intraoperative and postoperative complications were evaluated as additional criteria for success. RESULTS: The cumulative implant survival rate was 97.99%. Definitive or provisional prostheses were delivered on the same day of surgery, which resulted in an improvement in the quality of life of the patients. Five implants failed in four patients. No sinusitis or mucositis was seen in any of the patients. Eleven postoperative complications occurred in seven patients. CONCLUSION: The novel zygomatic surgery protocol introduced in this study can be an effective alternative to augmentation procedures and conventional implants, especially in cases of extremely atrophic posterior maxillae.


Assuntos
Implantação Dentária Endo-Óssea , Implantes Dentários , Prótese Dentária Fixada por Implante , Falha de Restauração Dentária , Seguimentos , Humanos , Qualidade de Vida , Estudos Retrospectivos
10.
Indian J Dent Res ; 31(3): 389-395, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32769272

RESUMO

Introduction: Implant rehabilitation of atrophic maxilla is challenging. The aim of this manuscript is to compare the clinical outcome of rehabilitation of atrophic maxilla (long span) by zygomatic implants (ZI) versus conventional sinus lift with augmentation procedures dental implants (SLAP-DI). Materials and Methods: A retrospective record analysis of a cohort of 25 patients fulfilling the inclusion and exclusion criteria, over a period of 6 years were performed. The patients had been either treated with ZI or SLAP-DI. The outcome measures were: prosthesis, implant and augmentation failures, any complications, patients' number of days with total or partial impaired activity, time to function and number of dental visits, assessed by independent assessors from records. The data was analyzed using SPSS with P ≤ 0.05. Results: There were 16 (64%) men and 11 (44%) had ZI while 14 (56%) underwent SLAP-DI. There were no prosthesis or implant failures in this cohort. Between ZI and SLAP-DI, there was no gender difference (P = 0.648), border line significance in minor complication (P = 0.075), with less complication encountered in SLAP-DI than the ZI. None of the cases had major complications that required hospitalization or severe medical therapy. Of the 14 cases that underwent SLAP, 11 (78.6%) had no augmentation failure (resorption <10%). ZI had older age (P = 0.000), with greater number of teeth missing (P = 0.002), with lesser time for functional loading (P = 0.000), required less number of visit to dentist (P = 0.000), and lesser bone loss at insertion site (P = 0.005). Discussion & Conclusion: The results are discussed in light of previous pertinent literature. This short term (~ 1 year follow-up) suggest that SLAP-DI and ZI have certain similar features. There is no statistical difference in outcome barring the time needed to functional loading (1.3 days vs. 444.3 days). Relatively more complications were reported for ZI, but had no statistical significance. Long-term and multi-center data are needed to confirm the results.


Assuntos
Aumento do Rebordo Alveolar , Implantes Dentários , Idoso , Implantação Dentária Endo-Óssea , Prótese Dentária Fixada por Implante , Falha de Restauração Dentária , Seguimentos , Humanos , Masculino , Maxila/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Zigoma
11.
Indian J Dent Res ; 31(3): 449-456, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32769282

RESUMO

Aims and Objectives: The aim of this prospective clinical study was to evaluate the success of one-stage direct (lateral) sinus lift procedure in severely atrophic posterior maxilla. Materials and Methods: One-stage direct (lateral) sinus lift procedure was carried out at 15 sites in 13 patients. All patients included in the study presented with partially edentulous posterior maxilla with one or more missing teeth and residual bone height less than 5 mm. Three months after surgery, patients were evaluated to access increase in residual bone height, density of new bone formed and implant stability. Patients were also evaluated after 3 months of prosthetic placement for the success of implant-supported prosthesis. Results: At 3 months post-operatively, increase in residual bone height was 8.31 ± 1.63 mm and the mean density of the newly formed bone around the implants was 417 ± 66.61 HU. All implants were stable and successfully osseointegrated, except one implant that was lost. The success rate of implant stability was 96.3% during the study period. Conclusion: Single-stage direct (lateral) maxillary sinus floor augmentation is a good treatment option with predictable outcome for patients with deficient alveolar bone in posterior maxilla.


Assuntos
Implantes Dentários , Levantamento do Assoalho do Seio Maxilar , Implantação Dentária Endo-Óssea , Falha de Restauração Dentária , Humanos , Maxila/cirurgia , Seio Maxilar/cirurgia , Estudos Prospectivos , Resultado do Tratamento
12.
J Prosthodont ; 29(8): 693-698, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32767417

RESUMO

PURPOSE: This study was done to compare the survival rates of cast gold and ceramic onlays placed in a dental school setting. MATERIAL AND METHODS: An electronic search was conducted in the patient records at Adams School of Dentistry, University of North Carolina at Chapel Hill for onlay codes that were in the database (From 1998 until 2018). Progress notes and radiographs were scrutinized to establish the survival time of the restorations. Any complications that occurred during the life time of the restorations were noted. The survival was summarized by categorization based on ranges of survival time in years; group 1: 1 to 5 years, group 2: 6 to 22 years. The mean survival time and standard deviation were calculated. One-way ANOVA was used to determine whether there was a statistically significant difference in the survival times between gold and ceramic onlays. RESULTS: The mean survival rate of cast gold onlays (86.6%) was comparable to that of ceramic onlays (81.1%). The gold onlays in Group 1 had a higher mean survival time (2.43 years) than the ceramic onlays (2.03 years). This difference was statistically significant (p = 0.002). The ceramic onlays in Group 2 had a mean survival time of 19.75 years while gold onlays had a mean survival time of 17.63 years. This difference was not statistically significant (p = 0.91). CONCLUSION: It was concluded that while the survival rate of ceramic onlays (81.1%) was inferior to that of cast gold onlays (86.6%), it was comparable.


Assuntos
Ouro , Restaurações Intracoronárias , Cerâmica , Porcelana Dentária , Falha de Restauração Dentária , Humanos , Estudos Retrospectivos
13.
Braz Oral Res ; 34 Suppl 2: e073, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32785483

RESUMO

The impact of clinical trials on patient care depends on the outcomes that they evaluate. In Dentistry, many trials use outcomes that are important to clinicians, but not to the patients. Thus, the aim of the present manuscript is to present an overview of the limitations, challenges, and proposals on the use of clinically relevant outcomes (CRO) in dental trials. Clinically relevant outcomes are variables that directly measure how the patient feels, functions, or survives. Some CROs, such as tooth loss, implant failure, and restorations failure require many years to occur and the number of events is low. The adoption of these variables as primary outcomes results in challenges for the researchers, such as use of large sample sizes and long follow-up periods. Surrogate outcomes, such as biomarkers, radiographic measurements and indexes, are frequently used to replace CROs. However, they present many limitations, since the effect of the treatment on a surrogate does not necessarily reflect a change in the clinical outcome. Some proposals for the adoption of CROs are presented, such as the development of core outcome sets within each dental specialties and the organization of multi-center clinical trials.


Assuntos
Ensaios Clínicos como Assunto , Falha de Restauração Dentária , Humanos , Doenças Estomatognáticas , Resultado do Tratamento
14.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 55(8): 555-564, 2020 Aug 09.
Artigo em Chinês | MEDLINE | ID: mdl-32842347

RESUMO

Objective: To evaluate the outcomes of immediate rehabilitation of the edentulous and potential edentulous jaws with implant-supported full-arch prostheses and analyse the risk factors of the complications. Methods: This retrospective study included 273 patients treated with immediate rehabilitation of the edentulous and potential edentulous jaws with implant-supported full-arch prostheses from April 2008 to December 2018 in Department of Implantology, Peking University School and Hospital of Stomatology. The patients' sex, age, place of residence, jaw position, opposing dentition, number of implants, diameter and length of implants, abutment height and abutment angle were recorded. The survival rate of implants and marginal bone loss were calculated and analyzed. Cox proportional hazards ratio model was adopted to analyze the potential risk factors of prosthetic complications. Results: A total of 225 patients (288 jaws) and 1 260 implants were included, with 126 males and 99 females, aged (57.3±11.0) years, with a following time of (5.04±3.08) years. The 1-year cumulative survival rate of implants was 98.0% (1 235/1 260). Forty-eight implants were lost during the follow-up, with 39 implants in the maxillae and 9 implants in the mandible. The risk of implant failure of the maxillae ï¼»7.2% (39/541)] is significantly higher than that of the mandible ï¼»1.3% (9/719)] (P<0.01). Average marginal bone loss at 1 and 5 years was (0.7±0.2) mm and (1.1±0.3) mm. One hundred and twenty patients experienced prosthetic complications including screw/abutment loosening (44 cases), screw/abutment fracture (2 cases) and artificial tooth/denture base fracture (99 cases). The possibility of immediate prosthesis fracture within 6-8 months was high but declined over the following years with the final prosthesis delivered. Cox regression analysis showed that the use of 17° abutments in the anterior region was significantly related to the prosthetic complications (hazard ratio=1.797, P=0.002). Conclusions: Immediate rehabilitation of the edentulous jaws with implant-supported full-arch prostheses can be a predictable technique. The immediate prosthetic mechanical complication prevalence was high. The use of 17° abutments in the anterior region may increase the risk of screw/abutment loosening. It is necessary to review in time.


Assuntos
Implantes Dentários , Carga Imediata em Implante Dentário , Arcada Edêntula/cirurgia , Boca Edêntula , Idoso , Prótese Dentária Fixada por Implante , Falha de Restauração Dentária , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento
15.
Int J Comput Dent ; 23(3): 225-233, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32789310

RESUMO

AIM: To evaluate the fracture resistance and failure pattern of 3D-printed and milled composite resin crowns as a function of different material thicknesses. MATERIALS AND METHODS: Three typodont tooth models were prepared to receive a full coverage composite resin crown with different thicknesses (0.5, 1.0, and 1.5 mm). The prepared master casts were digitally scanned using an intraoral scanner, and the STL files were used to fabricate 60 nanocomposite crowns divided into two groups according to the material thickness (n = 10) and fabrication method: a 3D-printed group (3D) using an SLA printer with nanocomposite, and a milled group (M) using a milling machine and composite blocks. All crowns were adhesively seated on stereolithography (SLA)-fabricated dies. All samples were subjected to thermomechanical loading and fracture testing. The load to fracture [N] was recorded and the failure pattern evaluated. Data were statistically analyzed using a two-way ANOVA followed by a Bonferroni post hoc test. The level of significance was set at α = 0.05. RESULTS: The 3D group showed the highest values for fracture resistance compared with the milled group within the three tested thicknesses (P < 0.001). The 3D and M groups presented significantly higher load to fracture for the 1.5-mm thickness (2383.5 ± 188.58 N and 1284.7 ± 77.62 N, respectively) compared with the 1.0-mm thickness (1945.9 ± 65.32 N and 932.1 ± 41.29 N, respectively) and the 0.5-mm thickness, which showed the lowest values in both groups (1345.0 ± 101.15 N and 519.3 ± 32.96 N, respectively). A higher incidence of irreparable fractures was observed for the 1.5-mm thickness. CONCLUSION: 3D-printed composite resin crowns showed high fracture resistance at different material thicknesses and can be suggested as a viable solution in conservative dentistry.


Assuntos
Porcelana Dentária , Falha de Restauração Dentária , Cerâmica , Desenho Assistido por Computador , Coroas , Planejamento de Prótese Dentária , Análise do Estresse Dentário , Humanos , Teste de Materiais , Impressão Tridimensional
16.
Eur J Prosthodont Restor Dent ; 28(3): 100-111, 2020 Aug 31.
Artigo em Inglês | MEDLINE | ID: mdl-32645260

RESUMO

The aim is to evaluate the success and survival rate of endocrowns and the influence of design, material and cements. A search of clinical trials of endocrowns was performed using three databases (Medline/PubMed, Scopus, CochraneLibrary), complemented by a manual search. The search resulted in 2,718 studies, six of which were included for analysis. The follow-up times were 2-12 years. Feldspathic porcelain was the material of choice cemented with different adhesive resin cement systems. Designs varied significantly. In total, the six studies represented 471 endocrowns. Thirty-six of these failed. Most common failures were loss of retention and fracture. Due to insufficient information on timing of events and drop-out, no statistical analysis was performed. No conclusive correlation between design, material, cement and success or survival of endocrowns could be established. Signs of differences in survival rates between molar and premolar endocrowns were noted, with a tendency towards higher survival rates for molar endocrowns. Feldspathic ceramic endocrowns with adhesive cementation demonstrate promising clinical performance. These conclusions are however based on a limited number of studies of comparatively low quality. Further studies are thus needed to verify the conclusions and to provide guidance in the clinical decision on best choice of materials, design and cements.


Assuntos
Coroas , Falha de Restauração Dentária , Cerâmica , Porcelana Dentária , Análise do Estresse Dentário , Teste de Materiais , Cimentos de Resina , Taxa de Sobrevida
17.
Compend Contin Educ Dent ; 41(7): 368-376; quiz 377, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32687381

RESUMO

Dental implant therapies must be planned and executed to meet both the immediate and longer-term expectations of patients. The early developmental success of dental implants was dependent on the quality and quantity of a patient's bone. Implants were commonly placed into the parasymphyseal mandibular and anterior maxillary bone. Building on this success, bone grafting allowed patients lacking sufficient bone to obtain implant-supported prosthetic solutions for treatment of partial or complete edentulism. More recently, several nongrafting solutions for implant therapy, including pterygoid implants, zygomatic implants, tilted implants, and short implants, have reported success. This article will consider the rationale for graftless solutions in implant therapy as well as the data supporting the use of various graftless protocols as alternatives to grafting and conventional dental implant therapy. It will discuss factors concerning graftless versus grafted approaches to treatment of patients with limited bone volume and will describe the use of short dental implants as a graftless solution in the edentulous maxilla.


Assuntos
Perda do Osso Alveolar , Implantes Dentários , Arcada Edêntula/cirurgia , Implantação Dentária Endo-Óssea , Planejamento de Prótese Dentária , Prótese Dentária Fixada por Implante , Falha de Restauração Dentária , Humanos , Maxila/cirurgia , Resultado do Tratamento
18.
Int J Oral Maxillofac Implants ; 35(4): 685-699, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32724920

RESUMO

PURPOSE: To evaluate the implant and prosthetic outcomes and biologic and technical complications of tooth-implant- supported fixed dental prostheses (TISFDPs) in comparison with implant-supported fixed dental prostheses (ISFDPs). MATERIALS AND METHODS: A comprehensive electronic search was performed by two independent reviewers up to February 2019. A hand search in relevant dental journals was also performed. The search identified a total of 175 citations, and 160 were excluded. Of the remaining 15 articles, seven were included in the review. RESULTS: The implant failure rate was between 0% and 9% for the TISFDPs and between 0% and 13% for the ISFDPs, and the prosthesis failure rate was between 0% and 13% for the TISFDPs and between 0% and 17% for the ISFDPs; no significant differences were observed within 24 to 120 months of follow-up. Less peri-implant marginal bone loss was observed in the TISFDPs (MD: -0.29; 95% CI: -0.58, 0.00; P = .05), but the difference was marginally significant. Abutment tooth intrusion rate was 3%, while abutment tooth fracture rate was between 0% and 4%. No significant differences in the technical complications were observed, although the TISFDPs had higher failure rates in framework fracture and abutment/prosthesis screw loosening, while ISFDPs had a higher failure rate in porcelain fracture. CONCLUSION: The TISFDPs could be an alternative treatment option to ISFDPs for the partially edentulous patient with both treatments achieving comparable implant, prosthetic, biologic, and technical outcomes.


Assuntos
Implantes Dentários , Parafusos Ósseos , Prótese Dentária Fixada por Implante , Falha de Restauração Dentária , Humanos , Falha de Prótese
19.
Int J Oral Maxillofac Implants ; 35(4): 707-720, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32724922

RESUMO

PURPOSE: The purpose of this study was to provide sufficient information on the clinical outcome of zirconia implants, mainly observing the survival rate and marginal bone loss (MBL), with a minimum follow-up of 12 months, to verify the adoption of ceramics as a rational possibility for dental implants. MATERIALS AND METHODS: A systematic electronic search through the PubMed (MEDLINE) and EMBASE databases was performed by two independent reviewers to identify clinical studies published between January 2005 and April 2019 containing a minimum of 10 patients per study and 12 months of follow-up after functional loading. References from the selected articles were manually reviewed for further studies. RESULTS: From the initial 1,225 articles retrieved, 19 met all the inclusion criteria. The marginal bone remodeling accounted for mean losses of 0.8 mm (95% CI: 0.60 to 1.00 mm) and 1.01 mm (95% CI: 0.72 to 1.29 mm) at 1 year and 2 years postloading, respectively. The failure rate of 6.8% was calculated for a mean follow-up period of 2.75 years, where the prevalence of early failure, late failure, and implant fracture was 3.4%, 1.7%, and 1.7%, respectively. The meta-analysis associated with the survival rate of one- and two-piece zirconia dental implants was hindered due to the lack of confidence interval or standard deviation information in most of the included articles. CONCLUSION: Zirconia implants presented MBL values consistent with the standard in the global consensus, high survival rates, and considerable clinical results at short-term observation periods following prosthetic delivery.


Assuntos
Perda do Osso Alveolar , Implantes Dentários , Planejamento de Prótese Dentária , Prótese Dentária Fixada por Implante , Falha de Restauração Dentária , Humanos , Zircônio
20.
Int J Oral Maxillofac Implants ; 35(4): 757-761, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32724928

RESUMO

PURPOSE: The aim of this retrospective study was to report the survival rate of a novel hybrid hydrophilic dental implant design for all bone types. MATERIALS AND METHODS: This study evaluated the data collected from patients who received at least one implant to support a full-arch, partial, or single-crown dental rehabilitation in the maxilla or mandible. Implant survival rate was evaluated according to the clinical area and bone type, loading protocol, implant length and diameter, and placement torque. RESULTS: A total of 453 tapered hybrid implants placed in 101 patients (mean age: 56.39 ± 12.98 years) were evaluated, and the survival rate was 99.6%. The follow-up period was up to 24 months. Regarding bone quality, types I, III, and IV presented a 100% survival rate, whereas type II presented a 99.3% survival rate. The vast majority of implants were immediately loaded (443 implants), which achieved placement torques between 32 and 60 Ncm or higher, and presented an implant survival rate of 99.5%. CONCLUSION: An overall survival rate of 99.6% was found for hydrophilic hybrid dental implants when placed in all bone types, and no statistically significant difference was observed between them. However, further studies should be necessary to confirm these preliminary results.


Assuntos
Perda do Osso Alveolar , Implantes Dentários , Carga Imediata em Implante Dentário , Adulto , Idoso , Implantação Dentária Endo-Óssea , Prótese Dentária Fixada por Implante , Falha de Restauração Dentária , Seguimentos , Humanos , Maxila/cirurgia , Pessoa de Meia-Idade , Estudos Retrospectivos , Taxa de Sobrevida
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