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Koenig A, Rotenburg L, Fuchs F, Sander S, Lethaus B, Hahnel S. Influence of aging of PEEK attachment inserts on the pull-off force of implant-retained overdentures - A laboratory study. Clin Oral Implants Res 2023; 34:1363-1372. [PMID: 37694944 DOI: 10.1111/clr.14180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 08/17/2023] [Accepted: 08/23/2023] [Indexed: 09/12/2023]
Abstract
OBJECTIVES The aim of the current study is to investigate the influence of mechanical stress as well as cleaning agents on the performance of various polyether ether ketone (PEEK) inserts for implant-retained overdentures (IOD). MATERIALS AND METHODS Three different standard PEEK inserts were subjected to rapid artificial aging through storage in chemical denture cleaning agents (acetic acid, sodium hypochlorite, or sparkling denture cleaner) as well as demineralized water. The pre-aged PEEK inserts were then placed in unilateral IOD and subjected to 200,000 chewing loads (5 kg ~ 50 N), with 5000 thermal cycles (5/55°C), and 1100 removal/insertion cycles (vertical movement 2 mm). RESULTS For all the PEEK inserts, the retention forces decreased significantly with an increasing number of mechanical load cycles and after exposure to all the cleaning agents. PEEK inserts aged by exposure to chemical cleaning agents showed a significantly higher decline in retention force than the inserts stored in water. Confocal laser scanning microscopy indicated that the decline in retention force might be caused by wear on the internal insert surface in contact with the patrix. CONCLUSIONS Within the limitations of this study, it can be concluded that the application of chemical cleaning agents accelerates the decline in the retention forces of PEEK retentive inserts in IODs.
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Affiliation(s)
- Andreas Koenig
- Department of Prosthodontics and Material Sciences, Leipzig University, Leipzig, Germany
| | - Laura Rotenburg
- Department of Prosthodontics and Material Sciences, Leipzig University, Leipzig, Germany
| | - Florian Fuchs
- Department of Prosthodontics and Material Sciences, Leipzig University, Leipzig, Germany
| | - Stephan Sander
- Department of Prosthodontics and Material Sciences, Leipzig University, Leipzig, Germany
| | - Bernd Lethaus
- Department of Cranio Maxillofacial Surgery, Leipzig, Germany
| | - Sebastian Hahnel
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, Regensburg, Germany
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Faot F, Petiz HCFC, Bielemann AM, Possebon APDR, Boscato N, Chagas-Júnior OL, Pinto LDR. Functional performance and impact on the quality of life of three treatment strategies for mandibular edentulism: Results of a parallel 3-group cross-sectional study. J Dent 2023; 136:104625. [PMID: 37473828 DOI: 10.1016/j.jdent.2023.104625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023] Open
Abstract
OBJECTIVES This parallel cross-sectional study compared masticatory function and patient-centered outcomes among 3 removable treatment strategies for mandibular edentulism. METHODS Thirty-six edentulous participants rehabilitated using 3 removable treatment strategies for mandibular edentulism were allocated to one of the three groups (n=12): CCD (control), 2-IMO, and 3-IMO. Narrow diameter implants were installed using single-stage surgery and conventionally loaded with stud abutments. After 3 months of usage, the quality of life, maximum bite force, and masticatory function were evaluated. Data were analyzed with the Kruskal-Wallis test and post hoc pairwise Mann-Whitney tests with Bonferroni correction (α=0.05). RESULTS The 2-IMO and 3-IMO wearers did not show significant differences in any outcome, except for the 2 domains of 3-IMO wearers quality of life that obtained better Pain and General Performance scores. Both IMO groups presented significantly higher maximum bite force than CCD wearers. The 2-IMO wearers showed superior outcomes to the CCD group in all outcomes of the masticatory performance test and the X50, B and ME5.6 outcomes of the swallowing threshold test (p = 0.01), while 3-IMO participants only showed superior masticatory performance in terms of lower X50 values (19.86%, p = 0.02) and higher ME 2.8 (141.15%, p = 0.04) than CCD wearers. CONCLUSIONS Compared to 2-IMO wearers, 3-IMO wearers report superior impact of treatment on daily living activities in the Pain and General Performance domains. 2-IMO and 3-IMO wearers showed no significant differences between them for all evaluated bite force and masticatory function parameters. CLINICAL SIGNIFICANCE Although overdentures retained by 3 implants (3-IMO) provide biomechanical advantages over those retained by 2 implants (2-IMO), superior clinical and functional effectiveness is not yet proven.
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Affiliation(s)
- Fernanda Faot
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Gonçalves Chaves Street 457 RS, Pelotas 96015-560, Brazil.
| | | | | | - Anna Paula da Rosa Possebon
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Gonçalves Chaves Street 457 RS, Pelotas 96015-560, Brazil
| | - Noeli Boscato
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Gonçalves Chaves Street 457 RS, Pelotas 96015-560, Brazil
| | - Otacílio Luiz Chagas-Júnior
- Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthodontics, School of Dentistry, Federal University of Pelotas, RS, Brazil
| | - Luciana de Rezende Pinto
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Gonçalves Chaves Street 457 RS, Pelotas 96015-560, Brazil
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Girundi FMDS, Marcello-Machado RM, Girundi ALG, Gonçalves TMSV, Del Bel Cury AA, da Silva WJ. Performance of complete dentures fabricated with the simplified and the traditional technique: A randomized clinical trial. J Prosthet Dent 2023; 130:229-237. [PMID: 34756607 DOI: 10.1016/j.prosdent.2021.08.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 10/20/2022]
Abstract
STATEMENT OF PROBLEM The simplified technique has been recommended for the fabrication of removable complete dentures. However, a consensus regarding the performance of the simplified and the traditional techniques is lacking. PURPOSE The purpose of this randomized clinical trial was to compare the performance of prostheses fabricated with the simplified and the traditional techniques. MATERIAL AND METHODS Sixty participants were recruited and randomized into 2 groups: traditional technique (control group) and simplified technique (experimental group). The assessments were performed before treatment (baseline) and 2 and 4 months after adaptation to the new complete dentures. The variables evaluated were satisfaction, oral health-related quality of life (OHRQoL) by using the Brazilian version of the OHIP-EDENT, the quality of the prostheses, and, for the functional assessment, the masticatory performance and swallowing threshold. The data were analyzed by the Fisher exact test, the Mann-Whitney test, and the generalized equations estimating (GEE) method. RESULTS At baseline, the mean ±standard deviation quality of the prostheses was 5.3 ±2.3 for the traditional technique and 4.9 ±2.3 for the simplified technique, and at 4 months, it was 9.3 ±0.9 and 9.1 ±0.9, respectively. For masticatory performance, the mean ±standard deviation X50 at baseline was 5.7 ±1.4 for the traditional technique and 5.7 ±0.9 for the simplified technique, and at 4 months, it was 3.8 ±1.2 and 3.7 ±0.9, respectively. The mean ±standard deviation OHRQoL at baseline was 14.1 ±8.6 for the traditional technique and 12.5 ±9.4 for the simplified technique, and at 4 months, it was 3.2 ±4.3 and 2.6 ±5.1, respectively. The mean ±standard deviation satisfaction at baseline was 9.5 ±3.9 for the traditional technique and 9.3 ±4.2 for the simplified technique; after 4 months, it was 14.8 ±2.0 for both techniques. There was a significant improvement (P<.05) for all variables in the study when comparing them at the baseline to those at the evaluation after provision of new complete dentures. There was no significant difference in all analyzed variables (P>.05) between the 2 techniques for prosthesis fabrication. CONCLUSIONS The simplified technique appears to be a suitable alternative to the traditional technique for the fabrication of complete dentures, with similar performance.
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Affiliation(s)
- Francisco Mauro da Silva Girundi
- PhD student, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil; Professor, Departmet of Odontology, Newton Paiva School of Dentistry, Belo Horizonte, Minas Gerais, Brazil
| | - Raissa Micaella Marcello-Machado
- Post-Doctoral Research, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil
| | - Ana Luíza Gonçalves Girundi
- MSc student, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil
| | | | - Altair Antoninha Del Bel Cury
- Professor, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil
| | - Wander José da Silva
- Professor, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil.
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Fan Y, Shu X, Leung KCM, Lo ECM. Association between masticatory performance and oral conditions in adults: A systematic review and meta-analysis. J Dent 2023; 129:104395. [PMID: 36563840 DOI: 10.1016/j.jdent.2022.104395] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 11/25/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES To give an overview of the evidence on the associations between oral condition factors and masticatory performance of adults, and to evaluate the direction and level of the associations. DATA/SOURCES Medline (PubMed), Embase (Ovid) and CINAHL Plus (EBSCOhost) were searched up to May 2022 for cross-sectional studies on oral conditions and masticatory performance in adults. Methodological quality of the included studies was independently evaluated based on the Joanna Briggs Institute critical appraisal checklist for analytical cross-sectional studies. Data on the associations between oral condition factors and masticatory performance were extracted. Meta-analysis was conducted on correlation coefficients. STUDY SELECTION Of the 8,035 records identified, 97 articles (88 studies) were included in the qualitative synthesis, and 18 studies were included in the meta-analyses. Among the oral condition factors that had associations with masticatory performance, the number of natural/remaining teeth or functional tooth pairs was reported by the largest number of studies, followed by perioral muscle status, dental prosthetic status, oral moisture status and periodontal status. Results of the meta-analyses showed that the positive association with the number of natural/remaining teeth was the strongest (pooled correlation coefficient: 0.51, 95%CI: 0.48 to 0.54), followed by the number of functional tooth pairs, maximum tongue force/pressure, while the association with the oral moisture status was the weakest. CONCLUSIONS Number of natural/remaining teeth and functional tooth pairs, perioral muscle status, oral moisture status, dental prosthetic status and periodontal status are the main oral condition factors influencing masticatory performance. Based on the limited evidence available, among these factors, the number of natural/remaining teeth has the strongest positive association, with a very low quality of evidence. CLINICAL SIGNIFICANCE This study provides valuable information on the oral condition factors associated with masticatory performance, which would be important for policymakers and clinical practitioners when deciding on the strategies for improving the masticatory performance of adults. This review highlights the need for standardization of measures and classifications of masticatory performance and oral conditions. REGISTRATION PROSPERO (registration number: CRD42021256824).
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Affiliation(s)
- Yanpin Fan
- Faculty of Dentistry, Prince Philip Dental Hospital, the University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong
| | - Xin Shu
- Faculty of Dentistry, Prince Philip Dental Hospital, the University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong
| | - Katherine Chiu Man Leung
- Faculty of Dentistry, Prince Philip Dental Hospital, the University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong
| | - Edward Chin Man Lo
- Faculty of Dentistry, Prince Philip Dental Hospital, the University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong.
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Schuster AJ, da Rosa Possebon AP, Schinestsck AR, Chagas-Júnior OL, Faot F. Circumferential bone level and bone remodeling in the posterior mandible of edentulous mandibular overdenture wearers: influence of mandibular bone atrophy in a 3-year cohort study. Clin Oral Investig 2021; 26:3119-3130. [PMID: 34854990 DOI: 10.1007/s00784-021-04294-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 11/09/2021] [Indexed: 10/19/2022]
Abstract
OBJECTIVES Evaluate circumferential bone level and morphological alterations in the posterior mandibular ridge of atrophic (AP) and non-atrophic (NAP) patients using implant-retained mandibular overdentures (MO) over 3 years. MATERIALS AND METHODS Twenty-six edentulous patients categorized according to mandibular atrophy (AP = 13/NAP = 13) received two narrow diameter implants (Facility, 2.9 × 10 mm) in the anterior region of mandible. The vertical and horizontal bone level was measured along with bone remodeling at 4 distances from the mental foramen in the posterior region of the mandible (L1-L4) via CBCT. RESULTS NAP showed significantly higher total height and medullary height in all posterior regions at 1 and 3 years (p ≤ 0.01). Cortical height and width were significantly higher (p ≤ 0.05) in this group at distances L1 and L4, respectively, in year 1. NAP shows a significantly higher % of medullary height at distances L1 (p ≤ 0.05), L2 (p ≤ 0.01), and L3 (p ≤ 0.05) after 1 year, and at all distances (p ≤ 0.05) after 3 years. Bone remodeling in the groups differed significantly (p ≤ 0.05) in terms of cortical width and % medullary width at L3. CONCLUSION AP and NAP showed similar vertical and horizontal bone level. Bone resorption in the posterior ridge was stabilized by MO over 3 years; however, AP are more susceptible to the long-term substitution of medullary bone by cortical bone. CLINICAL RELEVANCE This study is the first to longitudinally evaluate bone dimensions in atrophic and non-atrophic two-implant MO users by CBCT and revealed that MO is a predictable treatment based on the stabilization of the posterior bone resorption.
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Affiliation(s)
- Alessandra Julie Schuster
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | | | | | - Otacílio Luiz Chagas-Júnior
- Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthodontics, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fernanda Faot
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Gonçalves Chaves Street 457, Pelotas, RS, 96015-560, Brazil.
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Bielemann AM, Schuster AJ, Possebon APDR, Schinestsck AR, Chagas-Junior OL, Faot F. Clinical performance of narrow-diameter implants with hydrophobic and hydrophilic surfaces with mandibular implant overdentures: 1-year results of a randomized clinical trial. Clin Oral Implants Res 2021; 33:21-32. [PMID: 34551146 DOI: 10.1111/clr.13851] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 08/05/2021] [Accepted: 08/09/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To compare peri-implant clinical and radiographic parameters between hydrophilic and hydrophobic narrow dental implants in patients with mandibular implant overdentures for 1 year. MATERIALS AND METHODS In a randomized, double-blind, split-mouth study with a 1-year follow-up, sixteen edentulous participants received two narrow-diameter implants in the anterior mandibular region with 2 types of surfaces: hydrophobic (Neoporos surface, NS) and hydrophilic (Acqua surface, AS). During the osseointegration period and after loading with mandibular implant overdentures, the outcomes monitored were (i) peri-implant health: early healing index (EHI), visible plaque index (VPI), calculus presence (CP), peri-implant inflammation (PI), probing depth (PD), and bleeding on probing (BOP); (ii) implant stability quotient (ISQ), (iii) crestal bone loss (CBL) and bone level change (BLC); and (iv) implant success and survival rates. RESULTS The PD in NS implants decreased by 31.78% between 15 and 30 days, while a similar reduction (-31.28%) occurred in the 3rd month in the AS group. The ISQ also decreased significantly during the 1st month in both groups: -10.95% after 7 days in the NS group and -7.46% after 15 days in the AS group. At 12 months, statistically significant differences were not observed; however, the AS surface presented 50.6% smaller CBL and 41.3% smaller BLC values. The success and survival rates were 62.5% for AS implants and 87.5% for NS implants. CONCLUSION Narrow-diameter implants with hydrophilic and hydrophobic surfaces loaded with mandibular implant overdentures showed no differences in peri-implant healing, stability, and peri-implant bone remodeling in the 1st year of follow-up.
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Affiliation(s)
- Amália Machado Bielemann
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Alessandra Julie Schuster
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | | | | | - Otacílio Luiz Chagas-Junior
- Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthodontics, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fernanda Faot
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
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Factors associated with edentulous patients' willingness about implant-supported complete denture: a multivariate analysis. Clin Oral Investig 2021; 26:1835-1842. [PMID: 34491447 DOI: 10.1007/s00784-021-04158-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 08/21/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the factors influencing edentulous patients' willingness about mandibular implant-supported complete denture. MATERIALS AND METHODS A cross-sectional study was carried out with 117 bimaxillary edentulous patients wearing removable complete dentures (CDs). Patients were assessed concerning denture-related items (number of previous mandibular CDs, previous denture wearing period, dentures maker professional, and regular wearing of previous mandibular dentures) and individual-related aspects, such as mandibular edentulousness period, mandibular bone height, and willingness to the use of mandibular implant-supported complete denture. Masticatory performance was evaluated by the median particle diameter. Mandibular bone height and satisfaction were assessed using a validated method. The Chi-square test was used for data analysis and prevalence ratios were adjusted by using multivariate Poisson regression, both with 95% confidence interval. RESULTS A total of 78 participants (66.7%) were interested in mandibular implant-supported overdenture (mean age 65.33 ± 9.49). Masticatory performance was not influenced by choosing mandibular implant-supported complete denture. The preference about mandibular implant-supported complete denture was correlated with longer mandibular complete denture experience (p = 0.021) and it was significantly associated with dissatisfaction about retention (p = 0.005). CONCLUSION Previous experience with mandibular complete dentures and dissatisfaction about retention influence the willingness about mandibular implant-supported overdenture. CLINICAL RELEVANCE Many factors are associated with rehabilitation preferences for edentulous patients and mandibular implant-supported complete denture is one of the available alternatives. Therefore, this study has demonstrated the factors influencing the decision to replace a mandibular conventional complete denture by dental implant treatment based on patient's outcomes. Such finding may be considered as a relevant aspect towards shared decision-making for prosthodontic rehabilitation of edentulous patients.
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Rosa CDDRD, de Souza Leão R, Guerra CMF, Pellizzer EP, Silva Casado BGD, Moraes SLDD. Do ball-type attachment systems for overdenture result in better patient-satisfaction? A systematic review of randomized crossover clinical trial. Saudi Dent J 2021; 33:299-307. [PMID: 34434031 PMCID: PMC8376671 DOI: 10.1016/j.sdentj.2021.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 02/22/2021] [Accepted: 03/01/2021] [Indexed: 12/27/2022] Open
Abstract
Objective This review is to compare patient-satisfaction with ball-type overdenture attachment systems with others attachment systems. Material and methods This study was registered in PROSPERO (CRD42018097234) and adheres the PRISMA guidelines. Electronic searches on PubMed/MEDLINE, Scopus, Cochrane, and Web of Science databases for published articles were performed before October 2020. The PICO question was: “Do patients with a ball-type overdenture retention system have greater satisfaction, when compared to other attachment systems?” The evaluation of risk of bias was performed using the Cochrane risk of bias tool. Results After searching the databases, seven articles were selected out of a total of 2583. A total of 312 implants were placed in 139 patients, with a mean age of 65.9 years. The risk of bias in the included studies varied according to the different domains in a risk of uncertain bias or low bias risk. No difference was found between the ball attachment systems and the others systems, with respect to patient-satisfaction. The meta-analysis revealed no statistically significant difference between the ball systems and another systems (P = 0.11; MD: 10.90; 95% CI: −2.55 to 24.35). Conclusions Regarding patient general satisfaction, it was not possible to determine differences between the ball system and another types of attachment system for overdenture. The ball-type system was statistically superior only to the magnet system.
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Affiliation(s)
- Cleber Davi Del Rei Daltro Rosa
- Department of Dental Materials and Prosthodontics, Dentistry School, UNESP - São Paulo State University, R: José Bonifácio, 1193, Vila Mendonça, Araçatuba, SP, Brazil
| | - Rafaella de Souza Leão
- Dentistry School, UPE - University of Pernambuco, Av. General Newton Cavalcanti, 1650, Tabatinga, Camaragibe, PE, Brazil
| | | | - Eduardo Piza Pellizzer
- Department of Dental Materials and Prosthodontics, Dentistry School, UNESP - São Paulo State University, R: José Bonifácio, 1193, Vila Mendonça, Araçatuba, SP, Brazil
| | - Bruno Gustavo da Silva Casado
- Dentistry School, UPE - University of Pernambuco, Av. General Newton Cavalcanti, 1650, Tabatinga, Camaragibe, PE, Brazil
| | - Sandra Lúcia Dantas de Moraes
- Dentistry School, UPE - University of Pernambuco, Av. General Newton Cavalcanti, 1650, Tabatinga, Camaragibe, PE, Brazil
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Milić Lemić A, Rajković K, Radović K, Živković R, Miličić B, Perić M. The use of digital texture image analysis in determining the masticatory efficiency outcome. PLoS One 2021; 16:e0250936. [PMID: 33956854 PMCID: PMC8101913 DOI: 10.1371/journal.pone.0250936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 04/17/2021] [Indexed: 01/17/2023] Open
Abstract
The mixture level of gum samples consisting of two colours can be assessed visually, using the electronic colorimetric method, employing digital image processing techniques and specially designed software. The study investigates the possibility of an alternative method called "digital texture image analysis" (DTIA) to assess improvement of masticatory efficiency in denture wearers. The objectives were i) to evaluate whether DTIA discriminates changes in the colour mixing ability within a group over time; ii) to determine whether DTIA can be used to detect improvement in chewing ability; iii) to select the most appropriate DTIA feature that sufficiently describes masticatory efficiency in CDs wearers. The study was designed as an intra-individual evaluation of masticatory efficiency, which was assessed in participants with new dentures in three follow-up times. A set of four texture features was used in the current study. Uniformity, Contrast, Homogeneity and Entropy of the obtained chewing-gum samples were correlated to the degree of gum comminution. A statistically significant difference in masticatory efficiency was observed based on the values of the analysed DTIA variables of gum samples-Uniformity, Contrast, Homogeneity, and Entropy-have changed in the participants during the observation period. The improvement of the masticatory function in relation to the mixing ability of two-coloured chewing gum could be traced by monitoring changes in the values of DTIA variables. The most increasement of masticatory efficiency was observed by monitoring DTIA parameters such as contrast, and homogeneity.
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Affiliation(s)
- Aleksandra Milić Lemić
- Clinic for Prosthetic Dentistry, Faculty of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Katarina Rajković
- College of Applied Studies of Technics and Technology, Kruševac, Serbia
| | - Katarina Radović
- Clinic for Prosthetic Dentistry, Faculty of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Rade Živković
- Clinic for Prosthetic Dentistry, Faculty of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Biljana Miličić
- Department for Informatics and Biostatistics, Faculty of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Mirjana Perić
- Clinic for Prosthetic Dentistry, Faculty of Dental Medicine, University of Belgrade, Belgrade, Serbia
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Effect of mandibular residual ridge regularization on peri-implant wound healing when narrow diameter implants are used as overdenture retainers. J Prosthet Dent 2021; 128:648-655. [PMID: 33752905 DOI: 10.1016/j.prosdent.2020.12.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/16/2020] [Accepted: 12/16/2020] [Indexed: 11/20/2022]
Abstract
STATEMENT OF PROBLEM Alveolar ridge regularization involves the smoothing and minimal reduction of rough alveolar bone ridge to achieve adequate bone thickness around the implant. The effect of this procedure on peri-implant health is unclear. PURPOSE The purpose of this clinical study was to evaluate whether bone regularization affects the clinical and biological parameters of peri-implant health when narrow diameter implants are placed as mandibular implant overdenture retainers during initial healing and after occlusal loading. MATERIAL AND METHODS The need for mandibular ridge regularization in the anterior mandibular region was analyzed before the placement of 2 implants (2.9×10 mm, Facility; Neodent) in 21 participants provided with mandibular overdentures. Primary stability was measured by the insertion torque and implant stability quotient (ISQ). Clinical and biological evaluations measuring the plaque index, presence of calculus, probing depth, bleeding on probing index, gingival index, secondary stability (ISQ), and interleukine-1β (IL-1β) and tumor necrosis factor-α (TNF-α) concentrations in peri-implant crevicular fluid were measured during osseointegration on days 7, 15, 30, 60, and 90 and after loading on day 180 after implant placement. Multilevel mixed-effects linear regression analysis and the Kaplan-Meier test were used to analyze the data (α=.05). RESULTS The ISQ values showed significant differences on days 7 (P<.001) and 15 (P=.002) with higher values and on day 180 (P=.008) with a lower value compared with the baseline value in the ridge regularization group. Additionally, a significant decrease in probing depth was observed on days 60 (P=.008) and 180 (P=.027) compared with that on day 15 after implant placement. In the nonridge regularization group, significant decreases in probing depth were observed on days 30 and 180. Moreover, TNF-α levels in this group were significantly lower on days 30 (P=.001), 60, 90, and 180 (P<.001) when compared with the value on day 7 (P<.001). The ridge regularization group presented with significant differences in TNF-α and IL-1β levels on days 60 (P=.004) and 30 (P=.007), respectively, when compared with the values on day 7. The ISQ and probing depth in the ridge regularization group were associated with changes in TNF-α and IL-1β levels; furthermore, bone type, duration of edentulism, and mandibular bone atrophy were correlated with the clinical outcomes and TNF-α release. The implant survival rate was 67% in the nonridge regularization group and 100% in the ridge regularization group. CONCLUSIONS Mandibular ridge regularization appeared to be beneficial for peri-implant healing during the early stages and after 3 months of occlusal loading in patients with an atrophic ridge, prolonged time since edentulism, and poor bone quality.
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Xia Y, Ma C, Chen J, Witter DJ, Zhang Q, Creugers NHJ. Mandibular residual ridge morphology in relation to complete dentures and implant overdentures-Part II: Predictors for effectiveness of implant overdenture therapy. Clin Implant Dent Relat Res 2021; 23:140-148. [PMID: 33592681 DOI: 10.1111/cid.12975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 11/20/2020] [Accepted: 12/17/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND The significance of mandibular residual ridge height and satisfaction with conventional complete dentures (CCD) as predictors for the added value of implant-overdenture (IOD) therapy is unknown. PURPOSE To investigate the predictive value of thresholds for (1) residual ridge height at premolar location (PRH), and (2) satisfaction with CCD-stability for the added value of two intraforaminal implants supporting the mandibular CCD. METHODS Thirty CCD wearing patients (67.9 ± 7.0 years) for whom a new CCD was advised, received a new CCD. Mandibular gypsum models were digitally measured. After 3 months free of complaints (T1), perceived CCD-stability was evaluated, and participants received two intraforaminal implants. At T1 and T2 (3 months free of complaints after IOD therapy) participants completed OHIP14-CN, and denture satisfaction (VAS) questionnaires, and performed mixing ability tests. Participants were grouped according to PRH of ≥6.15 mm versus < 6.15 mm, and perceived CCD-stability satisfied vs. dissatisfied. Scores at T2 were compared to T1 (paired t-tests). Predictive values of PRH and CCD-stability were analyzed with logistic multivariate regression models. RESULTS At T2, only participants with PRH of <6.15 mm or dissatisfied with CCD-stability had significant lower OHIP-total and domain scores for 'physical pain' and 'physical disability' and significantly higher VAS scores for perceived chewing function, denture retention and oral comfort. Regression analyses showed that participants with PRH of <6.15 mm, or dissatisfied with CCD-stability had significantly higher chance for lower OHIP-total and domain scores 'physical pain' and 'physical disability', and for higher VAS scores for perceived chewing function, denture retention and oral comfort at T2. Masticatory performance improved significantly after IOD therapy, but independent of PRH and CCD-stability. CONCLUSION PRH and satisfaction with CCD-stability were adequate prognostic indicators for improvement of oral health-related quality of life and denture satisfaction by mandibular IOD therapy.
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Affiliation(s)
- Yuning Xia
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chufan Ma
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.,Air Force Medical Center, Fourth Military Medical University, Beijing, China
| | - Jihua Chen
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Dick J Witter
- Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Qian Zhang
- Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Nico H J Creugers
- Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
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Xia Y, Ma C, Chen J, Witter DJ, Zhang Q, Creugers NHJ. Mandibular residual ridge morphology in relation to complete dentures and implant overdentures-Part I: Predictors for perceived conventional denture stability. Clin Implant Dent Relat Res 2021; 23:131-139. [PMID: 33592676 DOI: 10.1111/cid.12976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 11/20/2020] [Accepted: 12/17/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND There is lack of reliable predictors for success of conventional complete denture (CCD) therapy, which in turn might affect the effectiveness of subsequent implant-retained overdenture (IOD) therapy. PURPOSE To investigate relationships between digitally obtained geometrical mandibular residual ridge measures and perceived CCD-stability. MATERIALS AND METHODS 30 CCD wearing patients (67.9 ± 7.0 years) for whom a new set of CCDs was advised, were treated with new CCDs. Digitalized mandibular gypsum models were measured using the Geomagic Studio 2013 software. Data were obtained for (1) height, width, and cross-section surface area of the residual ridge at different locations (midline, premolar, and anterior edge of retromolar pad) and (2) denture base surface area. Scatter plots and multivariate regression analyses were used to investigate associations between the geometric data and denture base surface area, and correlated with denture stability scores (Spearman rank test). RESULTS Scatter plots showed that best model fit for denture base surface area was mean ridge height (R2 = 0.906). Multivariate regression showed that height at premolar location (p = 0.001) had largest effect on denture base surface area (R2 = 0.796). Ridge morphology variables, except width at midline location, were significantly correlated with CCD-stability (p-values <0.05). CCD-stability was significantly correlated with denture base surface area (p ≤ 0.001). CONCLUSION Residual ridge height at premolar location was most predictive for denture base surface area and perceived CCD-stability.
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Affiliation(s)
- Yuning Xia
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chufan Ma
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.,Air Force Medical Center, Fourth Military Medical University, Beijing, China
| | - Jihua Chen
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Dick J Witter
- Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Qian Zhang
- Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
| | - Nico H J Creugers
- Department of Oral Function and Prosthetic Dentistry, College of Dental Science, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
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Clinical Versatility of the Facility-Equator Implant System as Mandibular Overdenture Retainers. Case Rep Dent 2020; 2020:8823547. [PMID: 33312740 PMCID: PMC7719493 DOI: 10.1155/2020/8823547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 11/09/2020] [Accepted: 11/11/2020] [Indexed: 11/17/2022] Open
Abstract
The use of mandibular overdentures (MO) for the rehabilitation of totally edentulous individuals with limited bone availability is widespread and has proven clinical success. Narrow diameter implants (NDI) are available on the market as MO retainers to solve problems related to limited bone availability and bone thickness, providing a low-cost, minimally invasive treatment option. This technique evolved over the years, and changes frequently involved the number of implants used as MO retainers, as the adoption of a smaller number of implants can generate biomechanical disadvantages, contributing to the increased stress in peri-implant tissues, which may accelerate marginal bone loss (MBL), in addition to reducing masticatory capacity and satisfaction with rehabilitation. Some studies pointed out that the use of 3 or more implants as MO retainers improves the biomechanics. Thus, the objective of this study was to report 3 different clinical cases where 3 or more NDI were adopted to retain mandibular overdentures in association with diverse loading protocols: (i) 3 implants adopting conventional loading, (ii) 4 implants using progressive loading, and (iii) 4 implants with hybrid loading. The case with 4 implants and progressive loading showed a slight worsening of masticatory function at 1 year, in addition to a more pronounced MBL compared to other cases, but with improvements in satisfaction and oral health-related quality of life. Thus, NDI can be used as MO retainers with predictability and clinical success, using different numbers of implants and loading protocols.
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Policastro VB, Cassiano AFB, Silva MDDD, Viotto HEDC, Leite ARP, Marin DOM, Pero AC. Influence of the height of the mandibular ridge on the masticatory function during the functional adaptation with new complete dentures. J Appl Oral Sci 2020; 28:e20200092. [PMID: 33111881 DOI: 10.1590/1678-7757-2020-0092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 08/15/2020] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND The period of functional adaptation to a new conventional complete denture embraces many transitory issues, and this period is directly related to the rehabilitation success. OBJECTIVE This clinical trial evaluated the influence of the height of mandibular ridge on the masticatory function of complete denture (CD) wearers during the adaptation period. METHODOLOGY A total of 28 individuals wearing new CDs (NR, n=14, normal mandibular ridges, 64±12.5 years, 9 female; RR, n=14, resorbed mandibular ridges, 69±6.8 years, 9 female) were assessed at 24 hours, 30 days, three months and six months after the insertion of the CDs for masticatory performance (MP, sieves method), satisfaction with CDs (questionnaire) and maximum occlusal bite force (MOBF) (gnatodynamometer). The classification of the mandibular ridges followed the Kapur index. Data of MP and MOBF were analyzed by two-way ANOVA and satisfaction with CDs was analyzed by Generalized Estimating Equations (GEE), α=.05. RESULTS Participants with NR presented better masticatory performance (p=.000 - NR 30.25±9.93%, RR 12.41±7.17%), general satisfaction (p=.047), retention of mandibular denture (p=.001), chewing ability (p=.037), and comfort of wearing a mandibular denture (p=.000). Regardless of the mandibular ridge, MP (p=.000) was higher at three (21.26±12.07%) and six months (24.25±12.26%) in comparison to 24 hours (18.09±10.89%), the MOBF (p=.000) was higher at three months (78.50±6.49 N) compared to 24 hours (57.34±5.55 N) and 30 days (62.72±5.97 N), and the comfort of wearing a mandibular denture (p=.002) at three months (1.61 ± 0.07) was greater than 24 hours (1.29±0.10) and 30 days (1.36±10). CONCLUSIONS The study suggests that the participants with NR have higher MP and satisfaction with their CD, regardless of the follow-up period after the insertion of the new CD. After subjects received the CD, a period of 3 months was necessary for achieving better achievement MOBF, MP, and self-perceived comfort with the mandibular denture, regardless of the height of the mandibular ridge.
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Affiliation(s)
- Vivian Barnabé Policastro
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departamento de Materiais Odontológicos e Prótese, Araraquara, SP, Brasil
| | - Ana Flávia Balestrero Cassiano
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departamento de Materiais Odontológicos e Prótese, Araraquara, SP, Brasil
| | - Marcela Dantas Dias da Silva
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departamento de Materiais Odontológicos e Prótese, Araraquara, SP, Brasil
| | - Hamile Emanuella do Carmo Viotto
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departamento de Materiais Odontológicos e Prótese, Araraquara, SP, Brasil
| | - Andressa Rosa Perin Leite
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departamento de Materiais Odontológicos e Prótese, Araraquara, SP, Brasil
| | - Danny Omar Mendoza Marin
- Universidade Federal de Santa Catarina, Faculdade de Odontologia, Departamento de Odontologia Restauradora, Florianópolis, SC, Brasil
| | - Ana Carolina Pero
- Universidade Estadual Paulista (UNESP), Faculdade de Odontologia de Araraquara, Departamento de Materiais Odontológicos e Prótese, Araraquara, SP, Brasil
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Possebon APDR, Schuster AJ, Bielemann AM, Porto BL, Boscato N, Faot F. Evaluation of Bite Force and Masticatory Performance: Complete Denture vs Mandibular Overdenture Users. Braz Dent J 2020; 31:399-403. [PMID: 32901716 DOI: 10.1590/0103-6440202003525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 06/17/2020] [Indexed: 12/13/2022] Open
Abstract
This cross-sectional observational study with 24 patients evaluated differences in bite force (BF) and masticatory performance (MP) between conventional complete denture (CCD) and implant mandibular overdenture (IMO) users and the correlation between these variables. The BF test was performed bilaterally with an occlusal force device. During the MP test, patients were asked to chew Optocal particles for 40 cycles. The Shapiro Wilk test was employed to verify the normality of the data, the student t test to identify differences between groups, and Pearson's correlation to investigate interrelationships between variables. A multiple linear regression was subsequently performed via the stepwise method. P values ≤0.05 were considered statistically significant. Unlike IMO users, CCD users presented a significant difference (25.6%) in BF between the dominant and non-dominant chewing side (p=0.04). IMO users presented significantly higher BF (p=0.01) without presenting a dominant side (p=0.38), and also performed significantly better for the following MP parameters: MPX50 values decreased by 27.25% in IMO users (p=0.01), MPB decreased by 48.38% (p=0.01), and ME 5.6 decreased by 53.25% (p=0.02), while ME2.8 increased by 151.57% (p=0.01). The BF and MPX50 in the IMO wearers group were negatively correlated (-0.57; p=0.05); this correlation coefficient was the only parameter included in the multivariate regression model. IMO users have higher BF and better masticatory performance than CCD users, especially in terms of chewed particles size reduction. MP is correlated with a higher BF in IMO users through better particle trituration.
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Affiliation(s)
| | | | | | - Bruna Leão Porto
- School of Dentistry, UFPel - Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Noéli Boscato
- Department of Restorative Dentistry, School of Dentistry, UFPel - Universidade Federal de Pelotas, Pelotas, RS, Brazil
| | - Fernanda Faot
- Department of Restorative Dentistry, School of Dentistry, UFPel - Universidade Federal de Pelotas, Pelotas, RS, Brazil
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Schuster AJ, Possebon APDR, Marcello-Machado RM, Chagas-Júnior OL, Faot F. Masticatory function and oral health-related quality of life of patients with atrophic and non-atrophic mandibles using implant-retained mandibular overdentures: 3-year results of a prospective clinical study. J Oral Rehabil 2020; 47:1278-1286. [PMID: 32772393 DOI: 10.1111/joor.13072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 06/05/2020] [Accepted: 08/03/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND Long-term changes in masticatory function, oral health-related quality of life (OHRQoL) and prosthetic complications in implant-retained mandibular overdenture (IMO) wearers as a function of bone atrophy require detailed investigations. OBJECTIVE Investigating the evolution of masticatory function, OHRQoL and prosthetic occurrences of IMO wearers according to mandibular bone atrophy over 3 years of usage. METHODS This study evaluated 26 IMO wearers after 2 and 3 years of IMO loading categorised according to mandibular resorption degree into atrophic mandible (AM) and a non-atrophic mandible (NAM) group. Masticatory function was assessed by the Masticatory Performance (MP) and Swallowing Threshold (ST) tests; OHRQoL and satisfaction via the Dental Impact on Daily Living (DIDL) questionnaire; and the prosthetic maintenance requirements and complications were monitored. RESULTS After the second year, the AM Group performed 32% more cycles (P = .047) than the NAM Group during the ST test. The DIDL questionnaire showed no significant difference for all domains, except for a moderate effect size in the General Performance domain after the third year. AM Group had more prosthetic occurrences (n = 109) than NAM Group (n = 60) in the first year, mainly due to Equator attachment dislodgment. During the third year, NAM Group presented a greater number of events (n = 45) than AM Group (n = 21) due to the greater number of O-ring exchanges. CONCLUSION Masticatory function and OHRQoL are not related to mandibular bone atrophy until 3 years after IMO rehabilitation. The prosthetic complications profile differs between groups, mainly in the first year.
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Affiliation(s)
- Alessandra Julie Schuster
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas (UFPel), Pelotas, Brazil
| | | | - Raissa Micaella Marcello-Machado
- Graduate Program in Clinical Dentistry, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil
| | - Otacílio Luiz Chagas-Júnior
- Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthodontics, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Fernanda Faot
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
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17
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Silva MDDD, Viotto HEDC, Policastro VB, Leite ARP, Cassiano AFB, Mendoza Marin DO, Santana TDS, Mollo FDA, Pero AC. Influence of adhesives usage in complete dentures during adaptation period varying the degree of resorption of mandibular ridges. J Prosthodont Res 2020; 64:264-271. [DOI: 10.1016/j.jpor.2019.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/17/2019] [Accepted: 08/08/2019] [Indexed: 11/30/2022]
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18
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Tang J, Wang Y, Wang Z, Guo Y, Wang C. Facial aesthetic evaluation of rehabilitation effects in edentulous patients with varying degrees of residual ridge resorption by 3D stereophotogrammetry. J Oral Rehabil 2020; 47:1095-1102. [PMID: 32535931 DOI: 10.1111/joor.13035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 05/11/2020] [Accepted: 05/30/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Residual ridge resorption impairs patients' satisfaction with complete denture (CD) treatment, but influence of bone resorption on the aesthetic rehabilitation of edentulous patients still remains unclear due to insufficient quantitative investigations. OBJECTIVES To quantitatively evaluate the effects of residual ridge resorption on facial aesthetic reconstruction in elderly edentulous patients. METHODS According to radiological examination, a total of 19 edentulous subjects were categorised into two groups, atrophic patients (APs) and non-atrophic patients (NAPs). Before CD treatment and 3 months after treatment, patients were asked to complete the Orofacial Esthetic Scale (OES). The changes in facial appearance were measured by 3D stereophotogrammetry, and the facial parameters of two groups were compared. RESULTS The patient's subjective satisfaction of oro-facial aesthetics and 3D objective assessment of facial appearance improved after CD treatment. Subnasale-gnathion (Sn-Gn) significantly increased from 60.13 ± 3.91 mm to 62.27 ± 3.82 mm. After rehabilitation, glabella-subnasale (G-Sn)/Sn-Gn, nasolabial (Cm-Sn-Ls) and mentolabial (Li-Sm-Pg) significantly decreased and were closer to normal values. Moreover, the subtraction value between G-Sn/Sn-Gn and normal value before treatment of APs and NAPs was 14.47 ± 8.04% and 6.94 ± 3.69%, respectively (P = .026), while after treatment, the values decreased to 10.61 ± 6.33% and 3.86 ± 2.31% (P = .013), respectively. CONCLUSION The increased volume of lips and cheeks played an important role in the facial aesthetic reconstruction of edentulous patients. NAPs tended to have more attractive faces after CD treatment, as their facial profile parameters (G-Sn/Sn-Gn and Cm-Sn-Ls) were closer to normal Chinese with well-balanced faces.
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Affiliation(s)
- Jinxin Tang
- Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Yu Wang
- Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Zhongyi Wang
- Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Yanyang Guo
- Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Chen Wang
- Jiangsu Key Laboratory of Oral Diseases, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Department of Prosthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
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19
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Albuquerque IS, Freitas-Pontes KM, de Souza RF, Negreiros WA, Ramos MB, Peixoto RF, Regis RR. Is a two-step impression mandatory for complete denture fabrication on the severely resorbed mandible? A randomized trial on mastication, patient satisfaction and adjustments. J Dent 2020; 99:103357. [PMID: 32437857 DOI: 10.1016/j.jdent.2020.103357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/23/2020] [Accepted: 04/30/2020] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVES To compare one- vs two-step impression procedures for the provision of conventional complete dentures (CCDs) for edentulous individuals with severe mandibular resorption, in terms of (1) masticatory performance and ability; (2) satisfaction with mandibular CCDs; and (3) post-delivery adjustments. METHODS Fifty-two patients requiring maxillary + mandibular CCDs were randomly divided into two parallel arms according to the impression method of the mandibular ridge: (SI) single impression with stock trays (irreversible hydrocolloid); (TI) two-step impression in custom trays, with border molding (impression compound) followed by the impression itself (polyether). Mastication performance was evaluated by a colorimetric test, whereas patients answered questions on masticatory ability and satisfaction with mandibular CCDs (100-mm visual analogue scale). The number of post-delivery sessions for adjustments were also quantified. Outcomes were assessed at 3 and 6 months after delivery. RESULTS The masticatory performance was similar for both groups, regardless of time (3 months, P = 0.62; 6 months, P = 0.61). No significant difference was found for patient-reported (P > 0.05), i.e. masticatory ability (general ease of chewing and quality of grinding food; ability to chew specific foods), general satisfaction with the mandibular CCD (general satisfaction, comfort, aesthetics, ability to speak and to perform correct cleaning, retention and stability). Both methods resulted in a similar number of post-delivery adjustment sessions [SI: 3.8 (1.7); TI: 3.2 (1.4); P = 0.09]. CONCLUSIONS Compared to a traditional approach, CCDs obtained from a single impression achieve similar masticatory performance/ability and patient satisfaction, even in patients with severely reabsorbed mandibular ridge. Both methods demand the same amount of post-delivery adjustment. CLINICAL SIGNIFICANCE A simplified impression technique which eliminates the secondary impression can provide CCDs of good clinical quality, which influences the OHRQoL, and satisfaction in the same extent they would by a two-step procedure, even for patients with severely reabsorbed mandibular ridges (ClinicalTrials.gov: NCT02339194).
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Affiliation(s)
- Ivo S Albuquerque
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil
| | - Karina M Freitas-Pontes
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil.
| | - Raphael F de Souza
- Oral Health and Society, Faculty of Dentistry, McGill University, 2001 McGill College Ave, Suite 500, Montreal, Quebec, Canada
| | - Wagner A Negreiros
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil
| | - Marcelo B Ramos
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil
| | - Raniel F Peixoto
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil
| | - Rômulo R Regis
- Department of Restorative Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará (FFOE-UFC), Fortaleza, Brazil
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Limpuangthip N, Somkotra T, Arksornnukit M. Subjective and objective measures for evaluating masticatory ability and associating factors of complete denture wearers: A clinical study. J Prosthet Dent 2020; 125:287-293. [PMID: 32115222 DOI: 10.1016/j.prosdent.2020.01.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/01/2020] [Accepted: 01/02/2020] [Indexed: 11/26/2022]
Abstract
STATEMENT OF PROBLEM The masticatory ability of complete denture (CD) wearers can be evaluated subjectively and objectively. Although an objective measure reflects a person's ability to masticate food, it is rarely used in clinical practice. Moreover, the factors associated with subjective and objective masticatory ability of CD wearers remain unclear. PURPOSE The purpose of this clinical study was to identify subjective and objective measures that better reflect the masticatory ability of CD wearers and to investigate their associating factors. MATERIAL AND METHODS Masticatory ability was evaluated in 130 CD wearers by using subjective and objective measures. The subjective indicators were oral impact on eating and denture satisfaction based on eating or mastication ability. Masticatory performance was objectively measured by using a median peanut particle size. The maximum occlusal force, number, and area of occlusal contacts were determined from a pressure-sensitive sheet. CD retention and stability were classified into acceptable and unacceptable denture quality following the CU-modified Kapur criteria. The occlusal pattern and oral conditions were examined and recorded. Intraexaminer reliability in determining CD quality and oral condition was shown by a Kappa score of 0.90 to 0.95. Multivariable linear and logistic regressions were performed to analyze the associations between CD quality, maximum occlusal force, and masticatory ability. The Spearman correlation was used to determine the association between subjective and objective measures. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) between subjective and objective measures were calculated. RESULTS Unacceptable CD quality was significantly associated with oral impact on eating, eating dissatisfaction, and larger peanut particle size (P<.001). Peanut particle size increased with lower maximum occlusal force, which was related to fewer occlusal contacts and the female sex. The highest to lowest adjusted R2 values were related to masticatory performance, oral impact on eating, and eating satisfaction models. Among participants with unacceptable CD quality, 16% had higher masticatory performance, 25%, had no oral impact on eating, and 33% reported eating satisfaction. The sensitivity and specificity values of subjective measures in predicting lower masticatory performance were approximately recorded at 74% and 90%, respectively, whereas PPV and NPV were at 90% and 77%, respectively. CONCLUSIONS CD retention and stability impact objective and subjective masticatory ability. Objective masticatory performance is the best measure for evaluating the masticatory ability of CD wearers, followed by oral impact on eating and eating satisfaction. A 3.6-mm peanut particle size is suggested as a cutoff value for identifying CD wearers with impaired masticatory ability.
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Affiliation(s)
- Nareudee Limpuangthip
- Lecturer, Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Tewarit Somkotra
- Assistant Professor, Department of Community Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Mansuang Arksornnukit
- Associate Professor, Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
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Kitagawa Y, Yoshida K, Takase K, Valanezhad A, Watanabe I, Kojio K, Murata H. Evaluation of viscoelastic properties, hardness, and glass transition temperature of soft denture liners and tissue conditioner. Odontology 2019; 108:366-375. [PMID: 31807949 DOI: 10.1007/s10266-019-00477-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 11/10/2019] [Indexed: 11/28/2022]
Abstract
Soft denture liners and tissue conditioners are widely used for the denture patients to cushion masticatory force and condition abused tissues, respectively. This study assessed methods for the evaluation of the viscoelasticity and glass transition temperature (Tg) of the silicone permanent soft liner, acrylic permanent soft liner, and tissue conditioner. Three rheological parameters of storage modulus (E'), loss modulus (E''), and loss tangent ([Formula: see text]), Tg, and hardness were determined using dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), and the Shore A0 hardness test. Five specimens were measured for each material. The time-temperature superposition principle was applied to produce master curves of E', E'', and [Formula: see text] for the tested materials at a reference temperature of 37 °C. The acrylic permanent soft liner and tissue conditioner exhibited viscoelastic behavior and sensitivity to frequency, especially at lower frequencies. The silicone permanent soft liner showed elastic behavior and was frequency-independent. Tg for the acrylic permanent soft liner was higher than that for the tissue conditioner, which in turn was higher than that for the silicone permanent soft liner for both DMA and DSC. In DMA, a higher frequency led to higher Tg values. A positive linear relationship was found between Shore A0 hardness and E' values, but not E'' and [Formula: see text] values. Shore hardness reflects elasticity, but not viscosity. The results of the present study can be used to improve methods for evaluating the viscoelasticity and Tg of soft denture liners and tissue conditioners.
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Affiliation(s)
- Yukiro Kitagawa
- Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Kazuhiro Yoshida
- Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Kazuma Takase
- Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Alireza Valanezhad
- Department of Dental and Biomedical Materials Science, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Ikuya Watanabe
- Department of Dental and Biomedical Materials Science, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Ken Kojio
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishiku, Fukuoka, 819-0395, Japan
| | - Hiroshi Murata
- Department of Prosthetic Dentistry, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan.
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Lam Vo T, Kanazawa M, Myat Thu K, Asami M, Sato D, Minakuchi S. Masticatory function and bite force of mandibular single-implant overdentures and complete dentures: a randomized crossover control study. J Prosthodont Res 2019; 63:428-433. [DOI: 10.1016/j.jpor.2019.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 02/25/2019] [Accepted: 03/04/2019] [Indexed: 11/25/2022]
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Pero AC, Scavassin PM, Policastro VB, de Oliveira Júnior NM, Mendoza Marin DO, Silva MDDD, Cassiano AFB, Santana TDS, Compagnoni MA. Masticatory function in complete denture wearers varying degree of mandibular bone resorption and occlusion concept: canine-guided occlusion versus bilateral balanced occlusion in a cross-over trial. J Prosthodont Res 2019; 63:421-427. [PMID: 31047845 DOI: 10.1016/j.jpor.2019.03.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 12/28/2018] [Accepted: 03/18/2019] [Indexed: 11/25/2022]
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Marcello-Machado RM, Faot F, Schuster AJ, Bielemann AM, Nascimento GG, Del Bel Cury AA. Mapping of inflammatory biomarkers in the peri-implant crevicular fluid before and after the occlusal loading of narrow diameter implants. Clin Oral Investig 2019; 24:1311-1320. [PMID: 31312971 DOI: 10.1007/s00784-019-03010-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 07/03/2019] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To monitor the cytokine release patterns in the peri-implant crevicular fluid (PICF) and to investigate which factors affect the success rate of narrow diameter implants (NDI) during the first year. MATERIAL AND METHODS Mandibular implant overdentures (IOD) retained by 2 NDI were installed in 16 clinically atrophic edentulous patients. The following parameters were monitored during the first year: (i) peri-implant health parameters (plaque index (PI), calculus presence (CP), gingival index (GI), probing depth (PD) and bleeding on probing (BoP); (ii) cytokine concentrations in the PICF (TNF-α, IL-1β, IL-6, IL-10); (iii) implant stability quotient (ISQ); (iv) marginal bone level (MBL) and bone level change (BLC); (v) implant success. The insertion torque, bone type, mandibular atrophy, time since edentulism, and smoking habits were also recorded. All data were analyzed using multivariable multilevel mixed-effects regression models. RESULTS The variability in the TNF-α release patterns temporarily reduced at weeks (w) 8-12, while the IL-1β concentrations remained low until they peaked at w48 [p < 0.05; + 177.55 pg/μl (+ 96.13 - + 258.97)]. Conversely, IL-10 release decreased significantly at w48 [p < 0.05; - 456.24 pg/μl (- 644.41 - - 268.07)]. The PD and ISQ decreased significantly (p < 0.05) over the follow-up period, while the MBL was stable after w48 with a BLC of 0.12 ± 0.71 mm. The overall success rate was 81.3%, and was influenced by TNF-α, IL-1β, IL-10, PI, GI, PD, smoking, and time since edentulism. CONCLUSION Pro- and anti-inflammatory cytokine release was balanced during the first 24 weeks. The GI, smoking, and time since edentulism are the most important factors determining the implant success. CLINICAL RELEVANCE The study contributes to the understanding of the osseointegration process in a clinically atrophic population rehabilitated with IOD, and highlights the importance of monitoring clinical peri-implant health-related parameters, smoking habit, and time since edentulism to predict implant success rates.
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Affiliation(s)
| | - Fernanda Faot
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Gonçalves Chaves St., 457, Center, Pelotas, RS, Brazil.
| | - Alessandra Julie Schuster
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Amália Machado Bielemann
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | | | - Altair Antoninha Del Bel Cury
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil
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Influence of Insertion Torque on Clinical and Biological Outcomes before and after Loading of Mandibular Implant-Retained Overdentures in Atrophic Edentulous Mandibles. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8132520. [PMID: 31275984 PMCID: PMC6582836 DOI: 10.1155/2019/8132520] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 04/12/2019] [Accepted: 05/08/2019] [Indexed: 12/31/2022]
Abstract
Aim To evaluate the influence of primary insertion torque (IT) values of narrow dental implants on the peri-implant health, implant stability, immunoinflammatory responses, bone loss, and success and survival rates. Methods Thirty-one edentulous patients received two narrow implants (2.9x10mm, Facility NeoPoros) to retain mandibular overdentures. The implants were categorized in four groups according to their IT: (G1) IT > 10 Ncm; (G2) IT ≥ 10Ncm and ≤ 30 Ncm; (G3) IT >30Ncm and < 45Ncm; (G4) IT ≥ 45Ncm, and all implants were loaded after 3 months of healing. The following clinical outcomes were evaluated 1, 3, 6, and 12 months after implant insertion: (i) peri-implant tissue health (PH), gingival index (GI), plaque index (PI), calculus presence (CP), probing depth (PD), and bleeding on probing (BOP); (ii) implant stability quotient (ISQ) by resonance frequency analysis; and (iii) IL-1β and TNF-α concentration in the peri-implant crevicular fluid. The marginal bone level (MBL) and changes (MBC) were evaluated. The Chi2 test, Kruskal-Wallis test, mixed-effects regression analysis, and the Kendall rank correlation coefficient were used for statistical analysis (α = 5%). Results G1 presented the highest PD at all evaluated periods. G2 presented higher PI at month 6 and 12. G4 showed increased GI at month 3 and 12 and more CP at month 1 (p=.003). G2 and G4 had higher ISQ values over the study period, while those from G1 and G3 presented lower ISQ values. The IL-1β concentration increased until month 12 and was independent of IT and bone type; G4 had a higher IL-1β concentration in month 3 than the other groups (p=.015). The TNF-α release was negatively correlated with IT, and TNF-α release was highest in G1 at month 12. The MBL immediately after surgery and the MBC at month 12 were similar between the groups, and G4 presented a positive MBC at month 12. The survival and success rates were 75% for G1, 81.3% for G2, 64.3% for G3, and 95% for G4. Conclusion The IT did not influence the clinical outcomes and the peri-implant immunoinflammatory responses and was weakly correlated with the narrow dental implants primary stability. The observed success rates suggest that the ideal IT for atrophic fully edentulous patients may deviate from the standardized IT of 32 Ncm.
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Miranda SB, Possebon APDR, Schuster AJ, Marcello‐Machado RM, Pinto L, Faot F. Relationship Between Masticatory Function Impairment and Oral Health‐Related Quality of Life of Edentulous Patients: An Interventional Study. J Prosthodont 2019; 28:634-642. [DOI: 10.1111/jopr.13070] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/27/2019] [Indexed: 12/26/2022] Open
Affiliation(s)
| | | | | | | | - Luciana Pinto
- Department of Restorative Dentistry, School of DentistryFederal University of Pelotas RS Brazil
| | - Fernanda Faot
- Department of Restorative Dentistry, School of DentistryFederal University of Pelotas RS Brazil
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Pereira AC, Bahia LR, Cavalcante DDFB, Meneghim MDC, Cavalcanti YW, Ambrosano GMB, Probst LF. Budgetary Impact of Oral Rehabilitation With Complete Dentures: An Economical Evaluation From São Paulo State, Brazil. Value Health Reg Issues 2019; 20:73-78. [PMID: 31048261 DOI: 10.1016/j.vhri.2019.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/18/2019] [Accepted: 01/30/2019] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To develop a budgetary impact analysis regarding the possibility of offering complete upper and lower dentures to an eligible population of elderly people (above 65 years) in the São Paulo state, Brazil. METHODS The proportion of eligible population was calculated by assessing the prevalence of edentulous (upper and lower arch) and by defining the eligible group (public health system users). The budgetary impact analysis was designed under the following scenario: 5-year time horizon (2018-2022), prospect of municipal expenses with prostheses, and additional progressive incorporation of technology (upper and lower dentures) at an annual rate of 10%, 15%, 20%, 25%, and 30%. Sensibility analysis was performed in 3 different situations (reference, more pessimistic, and more optimistic) based on the calculation of spending through assessed demand and epidemiological demand. RESULTS The municipal cost for each denture, already discounted the value transferred by the union for this procedure, was R$50.97. The incremental impact on the budget measured by the epidemiological demand relative to assessed demand was approximately R$59 141 510 over 5 years, meaning an impact of 0.08% (0.01% more optimistic; 0.13% more pessimistic) of the "medium and high complexity care" budget and 0.09% (0.03%-0.14%) of the primary care budget. CONCLUSION The budgetary impact of increasing the oral rehabilitation with complete dentures for elderly population in the São Paulo state is low relative to the expenses with primary or specialized care budgets. In addition, incorporation of denture rehabilitation would be feasible, according to the financial availability and priorities of each municipality.
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Faot F, Martins APP, Marcello-Machado RM, Schuster AJ, Bielemann AM, Nascimento GG, Melo ACM, Pinto LDR. Influence of facial patterns on the masticatory function and quality of life of completely edentulous patients during the transition to implant-retained mandibular overdentures. J Prosthet Dent 2019; 122:450-458. [PMID: 30948299 DOI: 10.1016/j.prosdent.2019.01.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 01/30/2019] [Accepted: 01/30/2019] [Indexed: 01/27/2023]
Abstract
STATEMENT OF PROBLEM Although implant-retained mandibular overdentures (IMOs) provide functional benefits, the influence of the vertical facial pattern (FP) and the anteroposterior skeletal discrepancy (ASD) on the masticatory function and patient-centered outcomes during the transition to IMOs is still uncertain. PURPOSE The purpose of this interventional clinical study was to evaluate the influence of the FP and ASD on the masticatory function, oral health-related quality of life (OHRQoL), and satisfaction of completely edentulous patients before and after transition to IMOs. MATERIAL AND METHODS Cephalometric analysis was performed on 42 participants before treatment. Ricketts analysis was used to classify the FP, and the maxillomandibular relationship to the base of the skull determined the ASD. Masticatory performance (MP) and swallowing threshold (ST) test results were evaluated by the multiple sieve method by using artificial test food (Optocal cubes) to determine the median particle size (×50), homogenization index (B), and masticatory efficiency based on sieves 5.6 (ME: 5.6) and 2.8 (ME: 2.8). OHRQoL and satisfaction were evaluated by using the Dental Impact on Daily Living questionnaire. The data were analyzed using mixed-effects linear regression models to estimate the effect of time, FP, ASD, age, and sex on MP, ST, and OHRQoL. RESULTS The MP, ST, OHRQoL, and satisfaction improved significantly after IMO loading, irrespective of FP and ASD. However, MP outcomes were most negatively affected mainly among dolichofacial (B and ME: 2.8), class II, and class III (×50, B, and ME: 2.8) participants. The ST test showed that class II participants still showed inferior ×50 values and performed a lower number of cycles than class I and class III participants. Women presented reduced masticatory function for all MP and ST outcomes and reported lower coefficients for appearance and general performance domains than men. CONCLUSIONS The MP test detected more subtle improvements than the ST test, especially in class III participants. The class II participants benefited the least from the IMO installation according to the ST test. The IMO treatment improved the OHRQoL and satisfaction of edentulous patients, irrespective of the FP or ASD.
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Affiliation(s)
- Fernanda Faot
- Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas (UFPel), Pelotas, Brazil.
| | - Ana Paula Pinto Martins
- Doctoral student, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas (UFPel), Pelotas, Brazil
| | - Raissa Micaella Marcello-Machado
- Postdoctoral Research Fellow, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, Brazil
| | - Alessandra Julie Schuster
- Postdoctoral Research Fellow, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas (UFPel), Pelotas, Brazil
| | - Amália Machado Bielemann
- Postdoctoral Research Fellow, Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas (UFPel), Pelotas, Brazil
| | - Gustavo Giacomelli Nascimento
- Postdoctoral Research Fellow, Section of Periodontology, Department of Dentistry and Oral Health, Aarhus University, Aarhus, Denmark
| | - Ana Claudia Moreira Melo
- Professor, Orthodontics Division, Latin American Institute of Dental Research and Education (ILAPEO College), Curitiba, Brazil
| | - Luciana de Rezende Pinto
- Associate Professor, Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas (UFPel), Pelotas, Brazil
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Schuster AJ, Marcello-Machado RM, Bielemann AM, Pinto LDR, Faot F. Is predicting masticatory function based on mandibular bone atrophy as defined by clinical and radiographic parameters possible? A clinical study. J Prosthet Dent 2019; 121:432-439. [DOI: 10.1016/j.prosdent.2018.05.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 05/25/2018] [Accepted: 05/30/2018] [Indexed: 11/24/2022]
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Alves CP, Munhoz MFV, Oliveira Nascimento GM, Nícoli GA, Paleari AG, Camargos GDV. The Influence of Age, Gender, Mandibular Bone Height, Previous Experience with Prostheses, and Fabrication Methods on Masticatory Performance of Complete Denture Wearers. J Prosthodont 2019; 28:e34-e40. [PMID: 30028061 DOI: 10.1111/jopr.12948] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2018] [Indexed: 11/29/2022] Open
Abstract
PURPOSE To evaluate the influence of age, gender, mandibular bone height, previous experience with prostheses, and methods for denture fabrication on masticatory performance of complete denture (CD) wearers. MATERIALS AND METHODS For this study, 29 individuals treated with CDs fabricated by simplified or conventional methods had their masticatory performance assessed 4 weeks after the prostheses' adjustment and control, using the sieve method and almonds as a natural food test. Experimental variables related to age, gender, and previous use of complete dentures were collected from dental records. Panoramic digital radiographs were used to determine mandibular bone height according to the criteria described by the American College of Prosthodontists. Data on masticatory performance were assessed using t-test for independent samples to make comparison between simplified and conventional methods, and a multiple linear regression analysis was performed to evaluate the influence of age, gender, previous experience with CDs, and mandibular bone height on masticatory performance using SPSS software with a significance level of 5%. RESULTS There was no significant influence regarding the method for CD fabrication (p = 0.92), age (p = 0.36), mandibular bone height (p = 0.37), and previous experience with prostheses (p = 0.15) on masticatory performance of CD wearers. Female patients presented lower masticatory performance than male (p = 0.04) patients did. CONCLUSIONS Considering the limitations of this study, it was concluded that gender might be considered a risk factor for masticatory performance of CD wearers. Female patients demonstrated reduced masticatory performance in comparison to male patients.
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Affiliation(s)
- Carla Pinto Alves
- Department of Restorative Dentistry, Dental School, Federal University of Alfenas, Alfenas, Brazil
| | | | | | - Giovanni Antônio Nícoli
- Department of Restorative Dentistry, Dental School, Federal University of Alfenas, Alfenas, Brazil
| | - André Gustavo Paleari
- Department of Restorative Dentistry, Dental School, Federal University of Alfenas, Alfenas, Brazil
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Bielemann AM, Marcello‐Machado RM, Schuster AJ, Chagas Júnior OL, Del Bel Cury AA, Faot F. Healing differences in narrow diameter implants submitted to immediate and conventional loading in mandibular overdentures: A randomized clinical trial. J Periodontal Res 2018; 54:241-250. [DOI: 10.1111/jre.12624] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 08/25/2018] [Accepted: 09/30/2018] [Indexed: 02/06/2023]
Affiliation(s)
| | | | | | - Otacílio Luiz Chagas Júnior
- Department of Oral and Maxillofacial Surgery and Maxillofacial ProsthodonticsSchool of DentistryFederal University of Pelotas Pelotas Brazil
| | - Altair Antoninha Del Bel Cury
- Department of Prosthodontics and PeriodontologyPiracicaba Dental SchoolState University of Campinas Piracicaba Brazil
| | - Fernanda Faot
- Department of Restorative DentistrySchool of DentistryFederal University of Pelotas Pelotas Brazil
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Possebon APDR, Marcello-Machado RM, Bielemann AM, Schuster AJ, Pinto LDR, Faot F. Masticatory function of conventional complete denture wearers changing to 2-implant retained mandibular overdentures: clinical factor influences after 1year of function. J Prosthodont Res 2018; 62:479-484. [PMID: 30006264 DOI: 10.1016/j.jpor.2018.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 06/12/2018] [Accepted: 06/14/2018] [Indexed: 11/30/2022]
Abstract
PURPOSE Evaluate how clinical factors related to conventional complete denture (CCD) wearers, can influence masticatory function (MF) of totally edentulous patients before and after one-year transitioning to implant-retained mandibular overdentures (IMO). METHODS Forty patients using CCD were rehabilitated with IMO and their MF was evaluated by: (i) ST_X50: theoretical aperture through which 50% of the weight of the particles would pass; (ii) STB: distribution homogeneity of the crushed particles. The clinical parameters analyzed were: atrophy, retention, stability, facial type, anteroposterior skeletal discrepancy, and type of loading. The statistical association was tested through crude and adjusted logistic regression. RESULTS IMO promoted improvements in the MF, irrespective of the clinical parameters. CCD wearers with poor retention had 86% less chance of achieving a good ST_X50. STB was associated with stability, facial type, and anteroposterior discrepancy. Subjects with poor mandibular CCD stability had a 76% lower chance of achieving a good test food homogenization, whereas brachyfacial individuals were 1.3 times more likely to have a good STB. Class II patients had an 89% lower chance of having a good homogenization of the particles as CCD users and after transition to IMO. CONCLUSIONS CCD users with poor retention achieved an inferior ST_X50. The STB performance can be compromised by poor stability or Class II characteristics, while brachyfacial individuals achieve better homogenezation of the food bolus. Although the transition to IMO improved the masticatory function, the anteroposterior discrepancy still maintained an association with STB, as Class II individuals still presented difficulties homogenizing food.
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Affiliation(s)
| | | | | | | | - Luciana de Rezende Pinto
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, RS, Brazil
| | - Fernanda Faot
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, RS, Brazil.
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Marcello-Machado RM, Faot F, Schuster AJ, Bielemann AM, Chagas Júnior OL, Del Bel Cury AA. One-year clinical outcomes of locking taper Equator attachments retaining mandibular overdentures to narrow diameter implants. Clin Implant Dent Relat Res 2018; 20:483-492. [PMID: 29577575 DOI: 10.1111/cid.12605] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 01/09/2018] [Accepted: 02/13/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND Narrow diameter implants (NDI) are recommended to retain mandibular overdentures (MOs) in cases of limited bone thickness. It is necessary to evaluate the clinical behavior of NDI as MO retainers connected to a new screwless locking taper abutments, their predictability and maintenance problems. OBJECTIVES To evaluate the peri-implant tissue behavior around NDI and the performance of locking taper stud abutments as MO retainers. METHODOLOGY Thirty patients (average age of 67.5 years) received 2 NDI implants (2.9 × 10 mm) loaded after 12 weeks using Equator stud attachments. The plaque index (PI), calculus index (CI), gingival index (GI), probing depth (PD), bleeding on probing (BOP), and implant stability quotient (ISQ) were monitored during osseointegration at 0, 4, 8, and 12 weeks and postloading at 24, 48, and 60 weeks. The marginal bone level (MBL) and bone level changes (BLC) were determined at baseline and 60 weeks. RESULTS The cumulative success rate was 83.3%. The PI oscillated in the first 24 weeks and decreased from 48 weeks onward, while the CI score showed significantly higher values at week 8 (22%). The GI also peaked at week 8 (18.6%) and decreased from week 12 onward. The PD decreased gradually over time, but no significant differences were found between weeks 8 and 12. The ISQ decreased significantly between 0 and 12 weeks. After MO loading, the ISQ values increased linearly and significantly between 12 and 24, 24 and 48, and 48 and 60 weeks and reached values similar to the primary stability after 60 weeks [56.1(42.0-65.3)]. No significant MBL was observed at 60 weeks, with an average BLC of -0.06 ± 0.64 mm. CONCLUSION NDI connected to locking taper Equator attachments showed a stable clinical behavior as an MO retainer for edentulous patients with clinical mandibular atrophy.
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Affiliation(s)
- Raissa Micaella Marcello-Machado
- Graduate Program in Clinical Dentistry, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil
| | - Fernanda Faot
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Rio Grande do Sul, Brazil
| | - Alessandra Julie Schuster
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Rio Grande do Sul, Brazil
| | - Amália Machado Bielemann
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Rio Grande do Sul, Brazil
| | - Otacílio Luiz Chagas Júnior
- Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthodontics, School of Dentistry, Federal University of Pelotas, Rio Grande do Sul, Brazil
| | - Altair Antoninha Del Bel Cury
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil
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Marcello-Machado RM, Faot F, Schuster AJ, Bielemann AM, Nascimento GG, Del Bel Cury AA. How fast can treatment with overdentures improve the masticatory function and OHRQoL of atrophic edentulous patients? A 1-year longitudinal clinical study. Clin Oral Implants Res 2017; 29:215-226. [PMID: 29218786 DOI: 10.1111/clr.13101] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2017] [Indexed: 11/26/2022]
Abstract
OBJECTIVES The aim of this prospective clinical study was to evaluate the masticatory function (MF) and subjective perception of patients with poor denture-bearing tissue in relation to change and the time required to identify an improvement in these parameters after rehabilitation with mandibular overdentures (MO) by two narrow-diameter two-piece implants. MATERIAL AND METHODS Twenty-three edentulous patients were selected for MO installation. The masticatory function (MF) was evaluated with the masticatory performance (MP) and swallowing threshold (ST) tests. In the MP test, each volunteer was instructed to masticate a portion of Optocal (standardized artificial test food) for 40 masticatory cycles. During the swallowing threshold test, the patients were instructed to chew a new portion of Optocal cubes until they felt the desire to swallow. The MF tests were performed while complete denture (CD) wearers (baseline) and 1, 3, 6, and 12 months after MO loading. In addition, the subjective perception was assessed through the questionnaires Dental Impact on Daily Living (DIDL), Geriatric Oral Health Assessment Index (GOHAI), and Oral Health Impact Profile in Edentulous (OHIP- EDENT) at the baseline and 3, 6, and 12 months after MO loading. RESULTS A significant improvement in masticatory function (p < .05) was observed already in the first month of loading. Three months after MO loading, a significant improvement (p < .05) was found in the subjective perception of patients. The effect size indicates that the MO had the greatest impact on the domains related to function and comfort of all questionnaires and in relation to psychosocial domain of the GOHAI. The level of patient satisfaction increased significantly after the MO loading and reached >90% satisfied patients at 12 months. CONCLUSION The MO improved both the MF of the patient and their oral health-related quality of life and satisfaction regarding the prosthesis in a short time period.
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Affiliation(s)
| | - Fernanda Faot
- Department of Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Alessandra Julie Schuster
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Amália Machado Bielemann
- Graduate Program in Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, RS, Brazil
| | | | - Altair Antoninha Del Bel Cury
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas, Piracicaba, SP, Brazil
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Marcello-Machado RM, Faot F, Schuster AJ, Nascimento GG, Del Bel Cury AA. Mini-implants and narrow diameter implants as mandibular overdenture retainers: A systematic review and meta-analysis of clinical and radiographic outcomes. J Oral Rehabil 2017; 45:161-183. [DOI: 10.1111/joor.12585] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2017] [Indexed: 02/07/2023]
Affiliation(s)
- R. M. Marcello-Machado
- Department of Prosthodontics and Periodontology; Piracicaba Dental School, State University of Campinas Piracicaba; SP Brazil
| | - F. Faot
- Department of Restorative Dentistry; School of Dentistry; Federal University of Pelotas; Pelotas RS Brazil
| | - A. J. Schuster
- Graduate Program in Dentistry; School of Dentistry; Federal University of Pelotas; Pelotas RS Brazil
| | - G. G. Nascimento
- Department of Dentistry and Oral Health; Aarhus University; Aarhus Denmark
| | - A. A. Del Bel Cury
- Department of Prosthodontics and Periodontology; Piracicaba Dental School; State University of Campinas; Piracicaba Brazil
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Marcello-Machado RM, Faot F, Schuster AJ, Bielemann AM, Chagas Júnior OL, Del Bel Cury AA. How does mandibular bone atrophy influence the masticatory function, OHRQoL and satisfaction in overdenture wearers? Clinical results until 1-year post-loading. J Oral Rehabil 2017; 44:850-859. [DOI: 10.1111/joor.12546] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2017] [Indexed: 01/16/2023]
Affiliation(s)
- R. M. Marcello-Machado
- Graduate Program in Clinical Dentistry; Department of Prosthodontics and Periodontology; Piracicaba Dental School; State University of Campinas; Piracicaba SP Brazil
| | - F. Faot
- Department of Restorative Dentistry; School of Dentistry; Federal University of Pelotas; Pelotas RS Brazil
| | - A. J. Schuster
- Graduate Program in Dentistry; School of Dentistry; Federal University of Pelotas; Pelotas RS Brazil
| | - A. M. Bielemann
- Graduate Program in Dentistry; School of Dentistry; Federal University of Pelotas; Pelotas RS Brazil
| | - O. L. Chagas Júnior
- Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthodontics; School of Dentistry; Federal University of Pelotas; Pelotas RS Brazil
| | - A. A. Del Bel Cury
- Department of Prosthodontics and Periodontology; Piracicaba Dental School; State University of Campinas; Piracicaba Brazil
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