Maxillomandibular relationship record methods for computer-engineered complete dentures: a scoping review.

OBJECTIVES: The purpose of this scoping review was to identify different methods employed for recording the maxillomandibular relationship (MMR) for computer-aided designed and manufactured (CAD-CAM) complete dentures (CDs). MATERIALS AND METHODS: This scoping review followed the PRISMA-ScR guidelines and was developed according to Arksey and O'Malley and The Joanna Briggs Institute protocol. The methods were registered on the Open Science Framework (< osf.io/rf4xm> ). The focus question was: "What are the different techniques for recording the maxillomandibular relationship in the digital workflow used in CECDs?" Two investigators searched 3 online databases [MEDLINE (PubMed), Scopus, and Science Direct] independently. The inclusion criteria were clinical studies and reviews that assessed techniques for recording MMR using digital workflow for manufacturing of CECDs. A descriptive analysis was performed considering the study design, manufacturing system, clinical steps, and tools for the determination of MMR, and the difficulty level of procedures. RESULTS: 4779 articles were identified in the electronic search and 10 studies were included for data analysis. The review identified 4 commercially available CAD-CAM denture systems and 3 innovative methods suitable for abbreviating the number of appointments (2 to 4 visits). The trial denture is inherent to the procedure for the Baltic System and 3 innovative techniques. Three techniques (2 innovative and WholeYouNexteeth) demonstrated lower difficulty levels for performing the clinical procedures, regardless of the professional skills. CONCLUSIONS: The commercially available and innovative techniques for the recording of MMR may provide predictability of the treatment. The techniques are effective, however, rely on the learning curve and the patient's clinical condition. CLINICAL RELEVANCE: Recording of the maxillomandibular relationship is paramount for the manufacturing and functionality of complete dentures. Clinicians should be aware of the different tools and techniques described for registering the jaw relationship.

Impact of using magnifying dental loupes on clinical performance during tooth preparation: A systematic review.

Background: To assess whether using magnification loupes affects tooth preparation working posture performed by undergraduate students and dentistry professionals and whether it influences the quality of the preparation, operator satisfaction and procedure time. Material and Methods: This review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement and registered in the International Prospective Register of Systematic Review (CRD42023482377). Electronic searches were conducted in PubMed/Medline, Cochrane Library, Web of Science, and Scopus databases for relevant articles published up to August 2023. Clinical or laboratory studies evaluating cavities or dental preparations performed with and without magnification loupes were considered eligible. The outcomes were operator working posture, dental preparation quality, operator satisfaction, and procedure time. The quality of the studies was evaluated using the JBI Critical Appraisal tools for Quasi-Experimental Studies. Results: The searches retrieved 1493 articles. Based on the eligibility criteria, 11 laboratory studies were included, where 410 undergraduate and graduate dental students conducted dental preparations in 1851 dental specimens. Of the 11 selected studies, 6 evaluated the working posture, 6 assessed the quality of the dental preparations, 5 reported operator satisfaction, and 2 assessed procedure time. The results showed that magnifying loupes significantly improved operator working posture, but did not influence the quality of tooth preparations. Although satisfaction reports about experiences with magnifying loupes were favorable, no significant difference was found. Conclusions: Magnification loupes improved operator working posture. However, clinical studies with more scientific evidence are needed for steady conclusions regarding operator satisfaction and procedural time. Key words:Magnification, dental loupes, tooth preparation, cavity preparation, dental education.

Clinical performance and patient-related outcome measures of digitally fabricated complete dentures: A systematic review and meta-analysis.

STATEMENT OF PROBLEM: The demand to streamline workflow while increasing patient comfort and satisfaction in the manufacturing of removable complete dentures (CDs) is growing, and computer-aided design and computer-aided manufacturing (CAD-CAM) technology has gained prominence. However, a systematic review and meta-analysis of the clinical performance and patient-related outcome measures (PROMs) of digitally fabricated complete dentures is lacking. PURPOSE: The purpose of this systematic review and meta-analysis was to determine whether digitally fabricated CDs improve the clinical performance and PROMs compared with conventionally fabricated CDs. MATERIAL AND METHODS: This systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses and was registered at the International Prospective Register of Systematic Reviews (CRD42023433909). This review aimed to address the question "Do digitally fabricated CDs improve clinical performance and PROMs compared with conventional CDs?" Two independent authors conducted electronic searches up to September 2023. Denture base retention and patient satisfaction were analyzed through the continuous outcome evaluated by mean difference and standard deviation, with 95% confidence intervals. The risk of bias in each study was assessed using the Risk of Bias In Non-randomized Studies of Interventions and the Risk of Bias based on the Cochrane risk of bias tool for randomized trials. The certainty of evidence was assessed using Grading of Recommendations, Assessment, Development and Evaluation. RESULTS: A total of 1505 articles were found during the search, and 16 were included in this review. The main outcomes were grouped into clinical performance (retention, adaptation or fit, clinician's denture quality assessment, masticatory efficiency, and occlusal force) and PROMs (patient satisfaction, oral health related quality of life, final choice, and willingness-to-pay). In terms of denture base retention, between conventional CDs and printed CDs analyzes, conventional CDs exhibited better retention (P=.02), but no significant difference was found between the conventional CDs and milled CDs (P=.20). In terms of patient satisfaction, no statistically significant difference was found between the manufacturing methods of digitally fabricated CDs (printed CD, P=.55; milled CD, P=.08). CONCLUSIONS: Digitally fabricated CDs showed similar or better clinical performance than conventional CDs, and different types of digital manufacturing processes for complete dentures did not influence PROMs.

Complete denture rehabilitation for a patient with Parkinson's disease using clinical strategies: A case report.

OBJECTIVE: To present clinical strategies for prosthetic rehabilitation with complete dentures (CDs) of a Parkinson's disease patient. CASE REPORT: An 82-year-old patient sought the Department of Dentistry at UFRN, reporting retention dissatisfaction and hamper to the mandibular CD adaptation. Patient-reported a dry mouth sensation, and exhibited disordered mandibular movements, tremors, and resorbed mandibular ridge. Aiming retention and stability, double molding with zinc enolic oxide impression paste, neutral zone technique, and non-anatomic teeth were proposed as clinical strategies. At delivery, identification and relief in the supercompression areas were performed to facilitate the acceptance and use of the new dentures. CONCLUSION: The strategies promoted patient satisfaction regarding retention, stability, and comfort. This treatment may be considered for the rehabilitation of Parkinson's disease patients, favoring the adaptation process.

Factors Associated with Nonadaptation to New Mandibular Complete Dentures: A Scoping Review.

PURPOSE: To identify and map the scientific evidence regarding factors associated with the nonadaptation of completely edentulous patients to mandibular complete dentures. MATERIALS AND METHODS: This scoping review followed the PRISMA-ScR statement for Scoping Reviews and was based on guidelines proposed by Arksey and O'Malley and the Joanna Briggs Institute Manual for Evidence Synthesis. The methodology was registered on the Open Science Framework. An electronic search strategy was conducted in PubMed/MEDLINE, Web of Science, Scopus, Cochrane Library, Virtual Health Library, ClinicalTrials.gov, Google Scholar, and ProQuest databases was conducted. Studies that evaluated factors associated with adaptation to and acceptance of mandibular complete dentures were included, such as sociodemographic, psychologic, patient-related, and denture-related items. RESULTS: The search conducted in March 2022 yielded 9,978 studies. In total, 24 studies were included for data extraction. Sociodemographic factors did not interfere with adaptation to a mandibular complete denture. Psychologic factors and patient-related aspects showed greater association with nonadaptation to mandibular complete dentures than denture-reported factors. CONCLUSION: Although it is suggestive that psychologic and patient-related factors have higher association with the acceptance of new dentures, data must be interpreted with caution due to the variability of methodologies of the studies included in this review.

Virtual facebow techniques: A scoping review.

STATEMENT OF PROBLEM: Although advances in technology continue to improve the acquisition of patient data and the manufacturing of different oral rehabilitations, the method of transferring clinical information to a virtual environment has not yet been consolidated in the literature. PURPOSE: The purpose of this scoping review was to map the existing literature on different techniques of transferring information from virtual facebows for oral rehabilitation. MATERIAL AND METHODS: This scoping review was structured using a 5-step methodology based on guidelines proposed by Arksey and O'Malley: (1) characterization of the research question, (2) identification of relevant studies, (3) selection of studies, (4) mapping of results, and (5) selection, summary and reporting of the data. The Joanna Briggs Manual for Evidence Synthesis was followed and the review was guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR). The guiding question for the development of this review was, "What virtual facebow techniques are being used to transfer anatomic data to the virtual environment?" RESULTS: A total of 1745 articles were found during the search, and 20 were included in this review. Nineteen of the included articles had positive results with the described techniques of registration and transfer of anatomic references to the virtual environment; however, 1 study indicated that the technique was negative. CONCLUSIONS: Based on the findings, facial scanning, 2-dimensional photographs, and cone beam computed tomography are feasible methods of acquiring extraoral anatomic landmarks. The use of a device that allows the convergence of intraoral and extraoral images by superimposing data was revealed to be a promising option.

Muscle activity between dentate and edentulous patients rehabilitated with dental prostheses: A systematic review.

BACKGROUND: Adequate muscle activity is important for the success of oral rehabilitation: it maintains the integrity of the stomatognathic system and is responsible for chewing movements needed to break, crush and grind food. OBJECTIVE: To compare muscle activity using electromyography (EMG) while clenching or chewing soft and/or hard foods among individuals with natural dentition (ND) and edentulous patients rehabilitated with dental prostheses. METHODS: This review was conducted until March, 2023, and the research question was "Is the muscle activity of edentulous patients rehabilitated with dental prostheses similar to that of dentate individuals?" A search strategy was conducted in PubMed/MEDLINE, The Cochrane Library, Web of Science, Lilacs, Embase and manual journal searches. RESULTS: Ten studies were included in the analysis. Most of them reported that individuals with ND had significant higher muscle activity (clenching or chewing) than complete dentures (CD) users. However, no difference was observed between patients with full mouth implant-supported fixed dental prosthesis (ISFDP) and ND. Additionally, two studies compared patients with mandibular ISFDP with maxillary CD and individuals with ND and found no differences; however, one study concluded that patients with ISFDP with CD (maxillary or mandibular) had lower muscle activity than individuals with ND. Only one study reported a higher muscle activity in patients with full-mouth ISFDP than in individuals with ND. CONCLUSIONS: Bimaxillary CD users had lower muscle activity than individuals with ND. During rehabilitation, the muscle activity of patients with full-mouth ISFDP and mandibular ISFDP with maxillary CD is similar to individuals with ND.

Factors associated with the non-adaptation to new mandibular complete dentures: a scoping review.

PURPOSE: To identify and map the scientific evidence regarding the factors that may influence the adaptation of complete edentulous to the mandibular complete denture. MATERIALS AND METHODS: An electronic search strategy in the PubMed/MEDLINE, Web of Science, Scopus, Cochrane Library, and Virtual Health Library databases from 1945 to 2021, was conducted, according to the criteria established by PRISMA-ScR. Studies that addressed factors that influenced adaptation and acceptance to mandibular complete denture were included, such as socio-demographic and psychological aspects and patient-centered condition, and denturer-elated factors. RESULTS: The search yielded 9264 studies, of which 87 articles were considered eligible for full-text screening. Of this total, 23 were included for data extraction. Sociodemographic factors do not interfere with adaptation to a mandibular complete denture. Reports of complaints regarding pain and discomfort negatively impact the acceptance of complete dentures. Patients with a neuroticism personality have more difficulty accepting the complete dentures, being more predisposed to abandon them. CONCLUSION: The psychological condition interferes with the predictability of treatment. Older and female patients, using first mandibular dentures, with resorbed ridges, and poor technical quality had more difficulty adapting to the complete dentures. However, these data must be interpreted with caution due to the variability of methodologies of the studies included in this review. Int J Prosthodont 2023. doi: 10.11607/ijp.7774.

Does the use of conventional complete dentures influence taste perception? A systematic review.

STATEMENT OF PROBLEM: Although conventional complete dentures are widely used, a systematic review of their influence on wearers' taste perception is lacking. PURPOSE: The purpose of this systematic review was to determine whether conventional complete dentures influence the taste perception of edentulous patients. MATERIAL AND METHODS: This systematic review was registered in the International Prospective Register of Systematic Reviews (PROSPERO) (CRD42022341567), and the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) were followed. The guiding question was: "Does the use of complete dentures influence the taste perception of edentulous patients?" Two reviewers searched articles in the PubMed/MEDLINE, Scopus, Cochrane Library, and https://clinicaltrials.gov databases up to June 2022. The risk of bias in each study was assessed using the risk of bias in nonrandomized studies of interventions and the risk of bias based on the Cochrane risk of bias tool for randomized trials. The certainty of evidence was assessed using grading of recommendations, assessment, development, and evaluation (GRADE). RESULTS: A total of 883 articles were found with the search, and 7 were included in this review. Various changes in taste perception were identified in some of these studies. CONCLUSIONS: The use of conventional complete dentures can influence the perception of the 4 primary tastes (sweet, salty, sour, and bitter) of edentulous patients, which may negatively interfere with the perception of flavor.

Patient-reported outcome measures and prosthetic events in implant-supported mandibular overdenture patients after immediate versus delayed loading: A systematic review and meta-analysis.

STATEMENT OF PROBLEM: Immediately loaded mandibular overdentures are clinically acceptable treatment options that have gained popularity because their use shortens the treatment duration. However, whether the immediate loading of dental implants can match the prosthetic events, satisfaction, and quality of life of delayed loading is still unclear. PURPOSE: The purpose of this systematic review and meta-analysis was to compare the prosthetic events, satisfaction, and quality of life of immediate versus delayed loading implants in patients rehabilitated with mandibular overdentures. MATERIAL AND METHODS: This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement and was registered at The International Prospective Register of Systematic Reviews (PROSPERO) (CRD42021258187). Electronic searches were carried out by 2 independent reviewers in the PubMed/MEDLINE, Cochrane Library, and Web of Science databases up to May 2021. Only randomized clinical trials and prospective studies with at least 10 participants that compared immediate versus delayed loading were selected. A meta-analysis was performed by using the RevMan 5 software program for complications and maintenance outcomes. RESULTS: Seven articles were included in the qualitative analysis, and 4 were included in the quantitative analysis. The meta-analysis demonstrated no significant difference between immediate and delayed loading for prosthetic complications (RR=1.71; 95% CI=0.67-4.37; I2=85%, P=.27) or maintenance (RR=1.92, 95% CI=0.44-8.28; I2=94%, P=.38). CONCLUSIONS: Although the prosthetic complications and maintenance were more likely to favor the delayed loading group, available evidence showed no statistical difference for prosthetic complications and maintenance between immediate loading and delayed loading in mandibular overdentures.

Rehabilitation with dental prostheses and its influence on brain activity: A systematic review.

STATEMENT OF PROBLEM: The consequences of edentulism depend on its complexity and are far-reaching, but limited evidence regarding its association with neurologic health is available. PURPOSE: The purpose of this systematic review was to establish the relationship between oral prosthetic rehabilitation and the regional increase in brain activity. MATERIAL AND METHODS: This systematic review was registered in the International Prospective Register of Systematic Reviews (CRD42021262247), and the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guideline was followed. Randomized clinical trials, prospective studies comparing the brain activity of patients rehabilitated with and without the use of dental prostheses, and studies that analyzed the human brain by using noninvasive techniques were used as inclusion criteria. The risk of bias in each study was assessed by using the Risk Of Bias In Non-randomized Studies-of Interventions (ROBINS-I). RESULTS: The search was carried out in the PubMed/MEDLINE, Embase, Cochrane Library, and https://clinicaltrials.gov databases up to June 2021. After a search conducted by 2 reviewers, 8 articles were included in the review. A regional increase in blood flow and regional cerebral activity during dental prosthesis use was identified in the studies. CONCLUSIONS: A positive association was found between the different types of prosthetic rehabilitation and brain function. Prostheses may preserve and restore neurological health.

Toxicity potential of denture adhesives: A scoping review.

STATEMENT OF PROBLEM: Denture adhesives are widely used products, but limited evidence regarding their toxicity is available. PURPOSE: The purpose of this scoping review was to map the existing literature on the toxic potential of denture adhesives. MATERIAL AND METHODS: This scoping review was structured based on the 5-step methodology proposed by Arksey and O'Malley and The Joanna Briggs Institute Manual for Evidence Synthesis and followed the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews. The methods were registered on the Open Science Framework (). The following research question was formulated: Are there any toxic effects related to the use of denture adhesives? The electronic literature search was performed independently by 2 authors in the following databases: PubMed/MEDLINE, Scopus, Web of Science, and the Cochrane Library. The inclusion criteria were in vitro and clinical studies; studies that evaluated the cytotoxic properties of denture adhesives as local or systemic implications; and studies published in English. RESULTS: The search conducted in October 2020 provided 1099 articles. In total, 33 studies were included, 14 in vitro and 19 clinical studies. Commercially available denture adhesives have a dose-dependent cytotoxic effect on fibroblasts and keratinocytes, with poor cell recovery noted in older human fibroblasts. Patients presented different levels of neurologic or hematological alterations associated with the excessive use of denture adhesives. CONCLUSIONS: Most commercially available denture adhesives have a dose-dependent cytotoxic effect, and the use of well-adapted removable dental prostheses, proper patient follow-ups, and correct instructions for their use when indicated should be a priority.

Dispositivos intraorais no tratamento da apneia obstrutiva do sono em pacientes desdentados: uma revisão sistematizada de literatura / Intraoral devices in the treatment of obstructive sleep apnea in edentulous patients: a systematized literature review

Objetivo: elucidar aspectos envolvidos no uso dos dispositivos intraorais para apneia obstrutiva do sono em indivíduos desdentados totais, como a eficácia dos dispositivos, o conforto e retenção/estabilidade. Metodologia: essa revisão seguiu o checklist do PRISMA, no qual foram incluídos estudos clínicos em inglês, sem restrição de tempo, em que foram utilizados dispositivos para apneia obstrutiva do sono em pacientes desdentados bimaxilares. As buscas foram realizadas nas bases de dados PubMed / MEDLINE, Cochrane e SCOPUS até março de 2021. Resultados: Após as diferentes etapas do processo de seleção dos artigos, foram selecionados 6 estudos para esta revisão, sendo 5 relatos de caso e 1 ensaio clínico. Os estudos relataram uma redução no índice apneia-hipopneia. Em três estudos houve redução expressiva, proporcionando a redução no grau de apneia, de severa para moderada e moderada para leve. A protrusão alcançada com os dispositivos foi adequada para o efeito desejado, em todos os dispositivos. Os estudos não reportam deslocamento do dispositivo e apenas um relata desconforto temporário. Conclusão: Os dispositivos intraorais foram eficazes no tratamento da apneia obstrutiva do sono em pacientes desdentados e os usuários não tiveram queixas quanto ao conforto e estáveis... (AU)

Objective: to elucidate aspects involved in the use of intraoral devices for obstructive sleep apnea in complete edentulous patients, such as the effectiveness of these devices, comfort and retention/stability. Methodology: this review followed the PRISMA checklist, included clinical studies in English, without publication restrictions, in which intraoral devices were used for obstructive sleep apnea in edentulous bimaxillary patients. The search was carried out in PubMed/MEDLINE, Cochrane and SCOPUS databases, until March 2021. Results: After the different stages of the article selection process, 6 studies were selected for this review, 5 case reports and 1 clinical trial. The studies reported a reduction in the apnea-hypopnea index. In three studies there was a significant reduction in the degree of apnea, from severe to moderate and moderate to mild. The protrusion achieved with the devices was adequate for the desired effect, in all devices. Studies did not report displacement of the device and only one reports temporary discomfort. Conclusion: Intraoral devices were effective in treating obstructive sleep apnea in edentulous patients and users had no complaints about comfort and stability... (AU)

Existe relação entre doenças respiratórias e próteses dentárias removíveis contaminadas? Uma revisão sistematizada da literatura / Relationship between respiratory diseases and contaminated removable dental prostheses

Objetivo: O objetivo dessa revisão sistematizada da literatura foi analisar a associação entre o uso de próteses dentárias removíveis e doenças respiratórias prevalentes. Materiais e métodos: Este estudo foi conduzido seguindo os critérios do PRISMA check-list (Preferred Reporting Items for Systematic Review and Meta-Analysis). A base de dados eletrônica selecionada foi a PubMed/MEDLINE, sem restrições do ano de publicação. Estudos prospectivos e retrospectivos (ensaios clínicos randomizados, ensaios clínicos controlados, estudos de coorte, estudos caso-controle e estudos transversais), estudos in vitro e publicados em inglês foram escolhidos como critérios de elegibilidade. Resultados: A busca inicial na base de dados obteve 553 artigos e 8 deles foram selecionados baseados nos critérios de elegibilidade e subdivididos em dois tópicos: doença pulmonar obstrutiva crônica e pneumonia por aspiração. Conclusão: Com base nos estudos avaliados existe associação entre as próteses dentárias removíveis contaminadas e doenças respiratórias... (AU)

Objective: The purpose of this review was to analyze the association between the use of removable dental prostheses and the prevalence of respiratory diseases. Methodology: This study was conducted following the criteria of PRISMA check-list (Preferred Reporting Items for Systematic Review and Meta-Analysis). The database selected was PubMed/MEDLINE, with no restrictions on the year of publication. Prospective and retrospective studies (randomized clinical trials, controlled clinical trials, cohort studies, case-control studies and cross-sectional studies), in vitro studies and published in English were selected in tehe eligibility criteria. Results: The search in the database obtained 553 articles and 8 of them were selected based on the eligibility criteria and subdivided into two topics: chronic obstructive pulmonary disease and aspiration pneumonia. Conclusion: Based on the studies evaluated, there is an association between contaminated removable dental prostheses and respiratory diseases... (AU)

Surface roughness of acrylic resins used for denture base after chemical disinfection: A systematic review and meta-analysis.

OBJECTIVE: This study aimed to systematically review the literature regarding the surface roughness of polymethylmethacrylate (PMMA) for denture bases, disinfected with different chemical agents and analyse the outcomes of the included studies. BACKGROUND: Various chemical disinfection protocols to clean the removable dental prosthesis are reported in the literature, however systematic reviews analysing the outcomes in the surface roughness of the PMMA are lacking. METHODS: The Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) checklist was used to structure this systematic review. The inclusion criteria were as follows: clinical trials, in vitro studies, studies in English and studies comparing the effects of chemical disinfection products on the surface roughness of PMMA. An electronic search was performed in the following databases: PubMed/MEDLINE, Scopus and Web of Science.; we also conducted a manual search for articles published in specific journals of dental prostheses and dental materials. RESULTS: Thirteen in vitro studies in this systematic review and meta-analysis. According to the meta-analysis, the effects of 0.5% (P = .32; MD: 0.06; CI: -0.05 to 0.17; heterogeneity: P < .00001; I2  = 92%) and 1% NaOCl solutions (P = .27; MD: 0.01; CI: -0.01. to 0.03; heterogeneity: P = .03; I2  = 55%) did not statistically differ between the groups studied. Effects of alkaline peroxide were statistically significant (P = .0009; MD: 0.01; CI: 0.01-0.02; heterogeneity: P = .004; I2  = 65%), suggesting that it promotes deterioration of the PMMA surface. CONCLUSION: The alkaline peroxide, when used as a disinfectant, generated changes on the surface roughness of PMMA and should be used with caution; however, NaOCl, even at different concentrations, caused fewer changes on the surface of the denture base.

Perfil sociodemográfico e odontológico de usuários de próteses totais do programa de extensão universitária Resgatando Sorrisos / Sociodemographic and dental profile of users of total protheses in the university extention program "Resgatando Sorrisos"

Objetivo: Realizar uma análise transversal do perfil sociodemográfico e clínico de pacientes edêntulos bimaxilares e dos hábitos de uso das suas próteses totais (PT) antigas. Posteriomente, os participantes foram reabilitados com próteses totais, em um período de 3 anos (2017- 2019)), em três municípios do estado de Pernambuco - Brasil, por meio de um programa de extensão universitária. Métodos: 58 participantes foram avaliados por meio de um questionário composto de 73 questões. Os dados coletados permitiram uma avaliação quantitativa, e o nível de significância considerado foi de 0,05. Resultados: Destaca-se um perfil de pacientes idosos com uma média de tempo de desdentado total de 24,3±15,3 anos (maxila) e 22,14±14,22 (mandíbula), havendo uma maior prevalência de usuários com próteses bimaxilares (74%). Destaca-se em 57,1% da amostra, a predo-minância da escovação com creme dental e, em 42,9%, a utilização de sabão/detergente, solução de hipoclorito de sódio (NaClO) e/ou bicarbonato de sódio (NaHCO3) como coadjuvantes na higienização. Além disso, 66,6% da amostra apresentou necessidade de intervenção clínica para reparos na PT. Com relação aos hábitos deletérios, os idosos apre-sentaram menos o hábito de dormir com a prótese quando comparados a adultos (p≤0,001). Conclusão: O perfil dos participantes apresentou prevalência do gênero feminino e idade média de 63 anos, além de uma média de 20 anos desdentados (maxila e mandíbula), um tempo elevado de uso das próteses (>10 anos) e o hábito de uso contínuo. Mais da metade dos participantes utilizava métodos de higienização inadequados.

Objective: To conduct a cross-sectional analysis of the sociodemographic and clin-ical profile of edentulous bimaxillary patients and their habits of using old complete den-tures (CD).Subsequently, the participants were rehabilitated with complete dentures, in three years (2017-2019), in three municipalities located in the state of Pernambuco, - Bra-zil, through a university extension program. Methods: We evaluated a total of 58 partici-pants through a questionnaire with 73 questions. Data collected were used for quantitative assessment, and the level of significance was set at 0.05. Results: Most of the participants were elderly patients with an average total edentulous time of 24.3 ± 15.3 years, and 22.14 ± 14.22 years at the maxilla and mandible, respectively. In addition, there was a high prev-alence of users who had bimaxillary prostheses (74%). In 57.1% of the sample, there was a predominance of brushing with toothpaste, 42.9% used soap/detergent, sodium hypochlo-rite solution, and (or) sodium bicarbonate as adjuvants in cleaning. Moreover, 66.6% of the patients needed a clinical intervention for CD repairs. About the harmful habits, the elderly showed a less frequent habit of sleeping with their prostheses compared to the adults (p ≤ 0.001). Conclusion: Most of the participants were female with an average age of 63 years. They presented an average of 20 years of edentulousness (maxilla and mandible) and the extended use of the dentures (> 10 years), in addition to the habit of continuous use. More than half of the participants used inadequate cleaning methods.

Comparison of three anesthetic techniques for the removal of posterior mandibular teeth with 2% lidocaine: a systematic review.

OBJECTIVES: The present systematic review aimed to evaluate whether the IANB (conventional inferior alveolar nerve block) technique is superior to the VA (Vazirani-Akinosi) or GG (Gow-Gates) techniques for anesthesia in the removal of posterior mandibular teeth. MATERIALS AND METHODS: This systematic review was structured according to the PICO strategy, adhered to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) checklist, and was recorded on the international prospective register of systematic reviews (PROSPERO-CRD42020153130). Studies were included based on the eligibility criteria and data from the included studies were collected by one author, while another reviewed the compilation. RESULTS: Eight studies were included, all of which were randomized controlled trials. Three studies tested the techniques by exclusively performing lower third molar removal; the others covered other posterior lower teeth. All studies used the same local anesthetic and the same vasoconstrictor: lidocaine 2% with epinephrine/adrenaline. A total of 1056 patients were evaluated. CONCLUSIONS: Some differences were observed between the techniques. Because of the heterogeneity between studies, clinical trials with more specific methodologies, such as comparisons of GG and VA with IANB for mandibular tooth removal, and the same clinical homogeneity will be worthwhile. CLINICAL RELEVANCE: A systematic review of which anesthetic technique is most effective for mandibular teeth removal may positively impact the population's life. There are no systematic reviews which approach this theme in a well-structured perspective.