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1.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 55(11): 809-813, 2020 Nov 09.
Artículo en Chino | MEDLINE | ID: mdl-33171551

RESUMEN

With the development of dental implant prosthodontic technique, many new concepts and methods have emerged. In the light of present situation, implant prosthodontic technique is developing towards precision, comfortability, immediacy and digitization. Meanwhile, the research area is focusing on expanding immediate restoration indications, clinical selection strategies of different prosthodontic materials and the accuracy of digitalized prosthodontics. The paper aims to discuss the developing trend in prosthodontics of dental implantology for clinical reference.


Asunto(s)
Prostodoncia
2.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 55(10): 710-715, 2020 Oct 09.
Artículo en Chino | MEDLINE | ID: mdl-33045780

RESUMEN

Accurate and measurable tooth preparation under the principle of protecting dental tissue, vital pulp and periodontal tissue health is a challenging procedure in esthetic dental restoration. The traditional protocol of tooth preparation often leads to complications after restoration because of the lack of precise preparation control. The pre-operative analysis and design, intraoperative guidance and sequence guidance technology of post-operative prosthesis production, with the target restoration space (TRS) as the core and digital technology as the support technology, embody the numerical requirements of the prosthesis space based on the actual measurement, and will lay the core foundation of the future digital prosthodontics. This paper introduces the new understanding of tooth preparation guidance, the classification and application of digital guides, the practice of micro tooth preparation guided by digital template, and summarizes the development direction of prosthodontics from experience guidance to digital guidance.


Asunto(s)
Estética Dental , Preparación del Diente , Pulpa Dental , Periodoncio , Prostodoncia
3.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 55(10): 716-721, 2020 Oct 09.
Artículo en Chino | MEDLINE | ID: mdl-33045781

RESUMEN

Three-dimensional (3D) printing prostheses or prosthodontic devices have been preliminarily used in the clinics of prosthodontics. These prostheses or devices include diagnostic prostheses, crowns and fixed bridges, removable denture frameworks, implant surgical template, and custom-made implants, etc. There are three major types of technologies for 3D printing according to the forming principles, namely, light curing, sintering or melting, and melting-condensation. The materials used in 3D printing prostheses or devices include polymers, metals, and ceramics, etc. The advantages of 3D printing prostheses include material-saving, customized manufacturing for restorations, and batch production. However, the precision and strength of prostheses or devices, long-term clinical effects, and grade of maturity in customized manufacturing need further investigation and improving. This article focused on the present application, and the future development of 3D printing technologies in prosthodontic treatments. It will provide beneficial references for the future studies, development, and clinical application of 3D printing technologies and restorations in prosthodontic fields.


Asunto(s)
Implantes Dentales , Prostodoncia , Cerámica , Coronas , Impresión Tridimensional
4.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 55(10): 729-736, 2020 Oct 09.
Artículo en Chino | MEDLINE | ID: mdl-33045783

RESUMEN

Objective: To explore and evaluate a three-dimensional (3D) digital simulated design and implementation technique in esthetic rehabilitation. Methods: Thirty patients with esthetic deficiency, who came to the Department of Prosthodontics, Peking University School and Hospital of Stomatology from December 2017 to July 2019, were recruited and randomly assigned into 2 groups. Four males and 11 females which were (36.0±10.5) years old in the experimental group, 6 males and 9 females which were (32.0±6.7) years old in the control group, were enrolled. In the experimental group, 3D digital simulated design was used to predict the post-treatment effect; and the final restorations were designed duplicating from the pre-treatment digital design confirmed by the patient and milled. In the control group, the final restorations were manufactured by the dental technician according to the design of two-dimensional (2D) digital smile design. The simulation degree of digital design and the similarity between preoperative design and postoperative rehabilitation were scored by the patients with visual analogue scales (VAS) in both groups; and the satisfaction rate to the restorations was evaluated by the patients. The quality of the restorations was accessed by a prosthodontist who did not know the grouping of patients according to the modified criteria of United States Public Health Service (USPHS). Results: Three-dimensional digital simulated design and implementation technique was successfully established. The VAS score on the simulation degree of digital design in the experimental group (8.5±0.5) was higher than that in the control group (7.2±0.7) (P<0.01); the VAS score on the similarity between preoperative design and postoperative rehabilitation in the experimental group (9.6±0.3) was higher than that in the control group (7.0±0.9) (P<0.01). The satisfaction rate of the patients to the restorations was significantly higher in the experimental group than in the control group (P<0.05). There was no significant difference of the quality of the restorations between the two groups on the anatomic form, the marginal adaption and the surface quality (P>0.05). Conclusions: Three-dimensional digital simulated design and implementation technique can help achieving 3D digital simulated design before treatment and duplication to the final restorations, and can improve the patients' satisfaction in esthetic rehabilitation.


Asunto(s)
Estética Dental , Sonrisa , Adulto , Odontólogos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Satisfacción del Paciente , Prostodoncia , Estados Unidos
5.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 55(9): 661-666, 2020 Sep 09.
Artículo en Chino | MEDLINE | ID: mdl-32878402

RESUMEN

Original documents of professional practices and research preserved on the stomatological journals demonstrated the development of stomatology. In this review article, we made an analysis on the progression of the scientific stomatological journals in modern China. The development of stomatology were influenced by the social and environmental factors. Evolutionary process of stomatology in modern China, which could be divided into 4 stages named as embryonic, development, stagnation and recovery stages, showed a development history from merely tooth extraction and prosthodontic treatment to sophisticated multiple disciplines.


Asunto(s)
Medicina Oral , Publicaciones Periódicas como Asunto , China , Atención Odontológica , Humanos , Prostodoncia
6.
J Prosthet Dent ; 124(3): 274-349, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32811666

RESUMEN

This comprehensive review of the 2019 restorative dental literature is offered to inform busy dentists regarding remarkable publications and noteworthy progress made in the profession. Developed by the Scientific Investigation Committee of the American Academy of Restorative Dentistry, each author brings discipline-specific expertise to 1 of 8 sections of the report: (1) prosthodontics; (2) periodontics, alveolar bone, and peri-implant tissues; (3) implant dentistry; (4) dental materials and therapeutics; (5) occlusion and temporomandibular disorders; (6) sleep-related breathing disorders; (7) oral medicine and oral and maxillofacial surgery; and (8) dental caries and cariology. The report targets important information likely to influence day-to-day dental treatment decisions. Each review is not intended to stand alone but to update interested readers so that they may visit source material when greater detail is desired. As the profession moves toward evidence-based clinical decision-making, an incredible volume of potentially valuable dental literature continues to increase. It is the intention of this review and its authors to provide assistance in negotiating the extensive dental literature published in 2019. It is our hope that readers find this work useful in the clinical management of dental patients.


Asunto(s)
Caries Dental , Materiales Dentales , Oclusión Dental , Humanos , Periodoncia , Prostodoncia , Estados Unidos
8.
Av. odontoestomatol ; 36(2): 81-88, mayo-ago. 2020. ilus, tab
Artículo en Español | IBECS | ID: ibc-194689

RESUMEN

INTRODUCCIÓN: La implantología oral puede constituir una modalidad terapéutica en el tratamiento prostodóncico de los pacientes con compromiso médico. El estudio muestra la evaluación del tratamiento con implantes en pacientes con diabetes comparados con pacientes sin diabetes. MÉTODOS: 48 pacientes edéntulos totales (24 pacientes diabéticos y 24 no diabéticos) fueron tratados con 96 implantes con superficie arenada y grabada Galimplant ® en la mandíbula para su rehabilitación prostodóncica con sobredentaduras mandibulares. 2 implantes fueron insertados en cada paciente. Los implantes fueron cargados funcionalmente tras un periodo de tiempo de 6 semanas con retenedores de fricción. Los hallazgos clínicos (implantológicos y prostodóncicos) se han seguido durante 7 años. RESULTADOS: Los resultados indican una supervivencia de los implantes del 95,8%. Durante el periodo de seguimeinto clínico se perdieron 4 implantes (dos implantes en cada grupo). La pérdida de hueso marginal media fué de 0,7 mm en ambos grupos. El 100% de los pacientes fueron tratados mediante una sobredentadura implantorretenida con anclajes de fricción. En 14 pacientes se realizaron cambios en los componentes plásticos de los ataches. El seguimiento clínico medio fue de 82,5 meses (60-102 meses). CONCLUSIONES: Los resultados del presente estudio indican que el tratamiento con implantes dentales en pacientes diabéticos es una terapéutica exitosa sin diferencias entre los pacientes diabéticos y no diabéticos


INTRODUCTION: Implant dentistry can to constitute a therapeutic modality in the prosthodontic treatment of medically compromised patients. This study reports the evaluation of treatment with implants in patients with diabetes compared with patients without diabetes. METHODS: 48 edentulous patients (24 diabetic patients and 24 non-diabetic patients) were treated with 96 Galimplant ® sand-blasted and acid-etched surface implants for prosthodontic rehabilitation with mandibular overdentures. Two implants were inserted in each patient. Implants were loaded after a healing free-loading period between 6 weeks with locator attaches. Clinical findings (implant and prosthodontics) were followed during at 7 years. RESULTS: Clinical results indicate a survival rate of implants of 95.8% in both groups. Four implant was lost during the follow-up period (two implants in each group). Media marginal bone loss was 0.7 mm in both groups. 100% of patients were treated with overdentures retained with 2 implants with locator attaches. Changes in plastic components of attaches were reported in 14 patients. The media follow-up was of 82.5 months (60-102 months). CONCLUSIONS: Clinical results of this study indicate that treatment with dental implants in diabetic patients is a successful implant treatment without differences with nondiabetic patients


Asunto(s)
Humanos , Masculino , Femenino , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Implantes Dentales , Arcada Edéntula/cirugía , Diabetes Mellitus , Prótesis de Recubrimiento , Prostodoncia/métodos , Tomografía Computarizada por Rayos X/métodos , Profilaxis Antibiótica/métodos , Clorhexidina/uso terapéutico , Tejido Periapical/diagnóstico por imagen , Tejido Periapical/patología , Análisis de Varianza
10.
J Prosthodont ; 29(S1): 3-147, 2020 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-32681591
12.
J Evid Based Dent Pract ; 20(2): 101415, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32473801

RESUMEN

ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION: Effect of cement type on the clinical performance and complications of zirconia and lithium disilicate tooth-supported crowns: A systematic review. Report of the Committee on Research in Fixed Prosthodontics of the American Academy of Fixed Prosthodontics. Maroulakos G, Thompson GA, Kontogiorgos ED. J Prosthet Dent 2019;121:754-65. SOURCE OF FUNDING: Unknown. TYPE OF STUDY/DESIGN: Systematic review.


Asunto(s)
Coronas , Cementos Dentales , Porcelana Dental , Diseño de Prótesis Dental , Humanos , Prostodoncia , Estados Unidos , Circonio
13.
J Prosthodont ; 29(8): 656-659, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32406074

RESUMEN

PURPOSE: To assess the management of sleep apnea and snoring disorders in Advanced Education Programs in Prosthodontics (AEPP) in the United States. MATERIALS AND METHODS: A 51 item, online survey was sent to program directors at 48 AEPPs in the United States in 2015. Data results were analyzed descriptively. RESULTS: Thirty-five program directors responded to the survey. Twenty-four (68.6%, N = 35) programs report not having a dedicated course for the treatment of sleep apnea and snoring disorders. The majority (94.3%) of programs chose to treat sleep disordered breathing with oral appliance therapy and 80.0% (N = 35) of programs utilize customized sleep apnea oral devices. However, only 48.6% (N = 35) and 51.4% (N = 35) of programs regularly address sleep apnea and snoring disorders at initial examination during the comprehensive exam and medical history questionnaire, respectively. CONCLUSIONS: The confidence interval for this survey is 8.71 at a confidence level of 95% due to a response rate of 72.9%. This confidence interval suggests there is responder bias in the survey results. Therefore, the results of this survey provide a suggestion of how sleep disorders are managed in AEPPs. Programs appear to be consistent among each other with regards to treatment modalities for sleep disordered breathing. The results suggest that patients are not screened enough to receive treatment addressing sleep disorders.


Asunto(s)
Síndromes de la Apnea del Sueño , Ronquido , Curriculum , Humanos , Prostodoncia , Síndromes de la Apnea del Sueño/terapia , Ronquido/terapia , Encuestas y Cuestionarios , Estados Unidos
14.
Eur J Prosthodont Restor Dent ; 28(2): 86-93, 2020 May 28.
Artículo en Inglés | MEDLINE | ID: mdl-32378830

RESUMEN

This study examined the ability of dental students and qualified dentists to visually assess the total occlusal convergence of clinical crowns. 10 working casts of maxillary molar crown preparations were installed in phantom heads in a clinical skills laboratory. 87 participants assessed the buccolingual and mesiodistal total occlusal convergence of the casts. 2nd-year students with no experience in fixed prosthodontics served as a control group with 3rd, 4th and 5th-year students and qualified dentists including specialists in restorative dentistry involved. Differences were calculated between the measured angles and the subject's estimate to assess accuracy. For 8 of the 20 surfaces measured there were significant differences. (p ⟨ 0.05). Differences were not standardized between the groups, with no clear patterns of difference in tooth type or aspect assessed. Differences were primarily between the control group and the more experienced groups. The remaining groups were of similar ability. A minority of participants in each group were highly divergent from their peers. This study found significant differences between participants with no experience of fixed prosthodontics and those with experience, however, the ability to assess total occlusal convergence does not appear to improve significantly with experience.


Asunto(s)
Estudiantes de Odontología , Preparación Protodóncica del Diente , Coronas , Diseño de Prótesis Dental , Odontólogos , Humanos , Prostodoncia
15.
Eur J Dent Educ ; 24(3): 559-571, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32362065

RESUMEN

INTRODUCTION: Oral rehabilitation with removable dentures (RDs) is still a viable choice for the edentulous population. Fostering students' confidence in prosthodontic procedures should be a major concern in dental schools. This study has three purposes: (a) to measure the self-reported confidence levels of undergraduate dental students when performing removable prosthodontic treatments; (b) to evaluate the students' perceived quality of removable prosthodontics education; and (c) to assess the students' suggestions to improve removable prosthodontics education. MATERIALS AND METHODS: An anonymous questionnaire was delivered to third-, fourth- and fifth-year students of the Faculty of Dental Medicine of the University of Porto (FMDUP) (n = 176). Data from quantitative questions were statistically analysed with IBM SPSS Statistics for Windows (V.24.0), whilst qualitative data were clustered into topics and analysed in Excel. RESULTS: With a 100% response rate, most students felt "confident" and "very confident" in RD clinical procedures. Overall, the 5th-year students had higher confidence than 4th-year ones, except when surveying diagnostic casts. Our findings also revealed that students considered the removable prosthodontics education "Good" and "Very good," and their main suggestions were related to increasing the time allocated to clinical practice. CONCLUSIONS: Students' confidence in carrying out removable prosthodontic procedures grew as they progressed through the course. Overall, the students' evaluation of the quality of prosthodontics education was positive, and their main suggestion to improve their confidence levels was increasing the clinical experience.


Asunto(s)
Prostodoncia , Estudiantes de Odontología , Odontólogos , Educación en Odontología , Docentes , Docentes de Odontología , Humanos
16.
J Dent Educ ; 84(9): 1037-1045, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-32441780

RESUMEN

INTRODUCTION: Since the introduction of the digital dental assessment systems, there has been a shift towards this trend as it appears to provide a more accurate, reliable, time efficient, and reproducible assessment. The Planmeca Emerald scanner coupled with Romexis Compare software allows students and staff to objectively assess individual crown preparations, receive numerical values of key dimensions, and subsequently undergo comparison with ideal crown preparation dimensions. OBJECTIVES: To measure the inter- and intra-rater reliability using the intra-oral scanner and Romexis Compare for prosthodontic crown preparations, and to evaluate the possible implementation of this software as a grading and self-assessment tool in a preclinical setting. METHODS: The Planmeca scanner and Romexis Compare were used to compare the difference between 30 experimental preparations (n = 15 anterior teeth, n = 15 posterior teeth) with their respective unprepared typodont teeth. Three student examiners (W., K., V.) independently scanned the typodont teeth in pre-formed standardized and non-standardized putty jigs. Each preparation was measured from facial, lingual, incisal/occlusal, and margin surfaces. A second trial was completed after 2 weeks to assess intra-rater reliability. The data were tabulated, graphed, and analyzed using SPSS and GraphPad Prism. RESULTS: The results of the study show greater consistencies in inter-operator measurements for anterior teeth. Some variations, however, were found in posterior teeth measurements between the operators. The results of the intra-rater measurements appear to be relatively consistent. CONCLUSION: With some limitations, Romexis Compare can be used as a reliable and repeatable method for objective and consistent evaluation of student prosthodontic preparations in a preclinical setting.


Asunto(s)
Educación en Odontología , Prostodoncia , Coronas , Humanos , Reproducibilidad de los Resultados , Programas Informáticos
17.
Indian J Dent Res ; 31(2): 318-322, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32436916

RESUMEN

The sequelae of chronic edentulous space is the supraeruption of the opposing teeth which hinders prosthodontic replacement. Molar intrusion of overerupted teeth can be done using miniscrew implants which serves as a promising technique, especially in adult patients. This case report highlights pre-prosthodontic therapy by pure molar intrusion using Temporary Anchorage Device (TAD) in an adult patient seeking prosthesis to enhance chewing efficiency.


Asunto(s)
Implantes Dentales , Métodos de Anclaje en Ortodoncia , Adulto , Humanos , Maxilar , Diente Molar , Diseño de Aparato Ortodóncico , Prostodoncia , Técnicas de Movimiento Dental
18.
J Ayub Med Coll Abbottabad ; 32(1): 54-57, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32468756

RESUMEN

BACKGROUND: Preclinical determination of occlusal plane is an important clinical step in construction of complete denture. Objective of present study was to find out the parallelism of occlusal plane to ala-tragus line in dentate subjects to provide a guideline for establishment of occlusal plane for edentulous patients. METHODS: In local dental College from April to October 2017 using purposive sampling technique this comparative study was conducted. After preliminarily examination, desired photographs of 120 subjects using fulfilling the inclusion criteria were taken biting on proper positioned Fox's Plan. Photographs were analysed through the computer software named Digimizer Image Analysis (Version 4.2.5.0) for three posterior reference points on the tragus of the ear at its superior (ATs), middle (ATm) and inferior (ATi) margin and one anterior reference point, i.e., Inferior margin of the Ala of the nose. Three lines were drawn with the help of the software that were extending from the posterior reference points to anterior reference point and fourth line Parallel to the upper level of the fox plane (FxP). Finally, the angles between the above-mentioned lines computed were analysed to check the parallelism. One sample t-test was utilized using SPSS. RESULTS: Mean angles value on right side of subjects between FxP to three reference points ATs, ATm, ATi were 3.261, 2.720 and 2.245 and on the left they were 2.347, 2.558 and 2.029 respectively showing no parallelism (angle value zero). CONCLUSIONS: Major findings revealed no parallelism among these planes.


Asunto(s)
Oclusión Dental , Dentadura Completa , Prostodoncia/métodos , Dentición , Humanos , Diente/diagnóstico por imagen
19.
Eur J Dent Educ ; 24(3): 499-506, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32222026

RESUMEN

INTRODUCTION: The preparation for dentin posts is difficult and hard to learn. There are currently no reproducible simulation models to train this clinical procedure. The purpose of this study was the design, feasibility and evaluation of a three-dimensional (3D) printed tooth model for the pre-clinical teaching of students. MATERIALS AND METHODS: A printable tooth was designed and printed by a stereolithographic printer. A total of 48 fourth-year dental students in the first clinical course in prosthodontics were trained in a voluntary hands-on course on 4 similar printed teeth. The students used standard model teeth and real-teeth models during their education. They had experience in caries removement and root canal treatment on real patients. Root perforations were counted for every attempt. The different benefits of the 3D printed tooth were evaluated by a questionnaire using German school grades from 1 (best) to 6 (worst). RESULTS: The overall rating of the printed tooth was Ø1.9 ± 0.3. The item "suitable exercise option" was rated Ø2.0 ± 0.8, and the teeth were "easy to use" Ø1.9 ± 0.9. The item "realistic approach to dentin post preparation" was rated Ø2.1 ± 0.8, and the teeth showed the "shortcomings at a root perforation" Ø1.5 ± 0.6. The students reported to have much more motivation and enthusiasm to improve their skills with the printed teeth Ø2.1 ± 0.9. They had a strong desire to include these teeth in their pre-clinical education before the first patient treatment Ø1.6 ± 0.8. The success rate of the dentin post preparation was significantly better for the second 25% (P = .047) and fourth 48% (P = .04) attempt. CONCLUSIONS: The feasibility of this teaching concept was confirmed. The students had the possibility to learn a correct dentin post preparation on a printed tooth model. The learning effect with this tooth model was rated as good to very good by the questionnaire.


Asunto(s)
Educación en Odontología , Impresión Tridimensional , Modelos Dentales , Dentina , Humanos , Prostodoncia
20.
BMC Oral Health ; 20(1): 80, 2020 03 19.
Artículo en Inglés | MEDLINE | ID: mdl-32188431

RESUMEN

BACKGROUND: Artificial intelligence (AI) is a branch of computer science concerned with building smart software or machines capable of performing tasks that typically require human intelligence. We present a protocol for the use of AI to fabricate implant-supported monolithic zirconia crowns (MZCs) cemented on customized hybrid abutments. METHODS: The study protocol consisted of: (1) intraoral scan of the implant position; (2) design of the individual abutment and temporary crown using computer-aided design (CAD) software; (3) milling of the zirconia abutment and the temporary polymethyl-methacrylate (PMMA) crown, with extraoral cementation of the zirconia abutment on the relative titanium bonding base, to generate an individual hybrid abutment; (4) clinical application of the hybrid abutment and the temporary PMMA crown; (5) intraoral scan of the hybrid abutment; (6) CAD of the final crown with automated margin line design using AI; (7) milling, sintering and characterisation of the final MZC; and (8) clinical application of the MZC. The outcome variables were mathematical (quality of the fabrication of the individual zirconia abutment) and clinical, such as (1) quality of the marginal adaptation, (2) of interproximal contact points and (3) of occlusal contacts, (4) chromatic integration, (5) survival and (6) success of MZCs. A careful statistical analysis was performed. RESULTS: 90 patients (35 males, 55 females; mean age 53.3 ± 13.7 years) restored with 106 implant-supported MZCs were included in the study. The follow-up varied from 6 months to 3 years. The quality of the fabrication of individual hybrid abutments revealed a mean deviation of 44 µm (± 6.3) between the original CAD design of the zirconia abutment, and the mesh of the zirconia abutment captured intraorally at the end of the provisionalization. At the delivery of the MZCs, the marginal adaptation, quality of interproximal and occlusal contacts, and aesthetic integration were excellent. The three-year cumulative survival and success of the MZCs were 99.0% and 91.3%, respectively. CONCLUSIONS: AI seems to represent a reliable tool for the restoration of single implants with MZCs cemented on customised hybrid abutments via a full digital workflow. Further studies are needed to confirm these positive results.


Asunto(s)
Inteligencia Artificial , Diseño Asistido por Computadora , Diseño de Implante Dental-Pilar/métodos , Prótesis Dental de Soporte Implantado , Prostodoncia/métodos , Titanio/química , Circonio/química , Adulto , Anciano , Coronas , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
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