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Clinical and Experimental Dental... Apr 2021The World Health Organization (WHO) recognizes edentulism as a physical impairment that results in a negative impact in the daily activities. (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
The World Health Organization (WHO) recognizes edentulism as a physical impairment that results in a negative impact in the daily activities.
OBJECTIVE
The study aimed to compare the satisfaction and the quality of life, in patients treated with implant retained overdentures with two mandibular implants (IOD) against those with mandibular conventional complete dentures (CCD).
METHODS
Different search strategies were used to screen for articles in Pubmed/Medline, Cochrane Library and Scielo of the last 17 years (2003-2020). The keywords used were: "quality of life OR satisfaction" AND "complete denture OR conventional denture" AND "overdenture OR implant retained."
RESULTS
Six articles and two more were added by manual search. The population was 400 in the CCD and 412 for IOD. The mean age was 64.3 ± 6.41 years. The group was comprised of 283 men and 427 women. The scores obtained in the visual analog scale (VAS) before and after the treatment were statistically significant in favor of the IOD for overall satisfaction, (WMD: 12.329; 95% CI: 4.873 to 19.784, p-value = 0.001), comfort, speech and stability. For esthetics and chewing there was non-significant improvement while hygiene worsened for the IOD. For the comparison after the treatment between both treatment modalities a statistically significant improvement was found in overall satisfaction (WMD: 14.408; 95% CI: 8.589 to 20.226, p-value < 0.001), comfort, speech, chewing and stability in favor of the IOD but not in esthetics or hygiene.
CONCLUSIONS
This systematic review and meta-analysis show the superiority of the IOD, despite is not achieved in all aspects.
Topics: Aged; Dental Implants; Dental Prosthesis, Implant-Supported; Denture, Complete; Denture, Complete, Lower; Denture, Overlay; Female; Humans; Male; Middle Aged; Patient Satisfaction; Personal Satisfaction; Quality of Life
PubMed: 33205918
DOI: 10.1002/cre2.347 -
Clinical Oral Implants Research Nov 2022To compare clinical and patient-reported outcomes when providing maxillary overdentures on four and six splinted implants placed in the posterior region during a 10-year... (Randomized Controlled Trial)
Randomized Controlled Trial
OBJECTIVE
To compare clinical and patient-reported outcomes when providing maxillary overdentures on four and six splinted implants placed in the posterior region during a 10-year follow-up period.
MATERIALS AND METHODS
Sixty-six edentulous participants with functional maxillary denture complaints and insufficient bone volume to allow implant placement were scheduled for a bone augmentation procedure. After healing, participants were randomized to receive either four or six implants in the posterior maxilla. After 3 months of osseointegration, a bar overdenture was constructed. Implant survival, overdenture survival, clinical scores, peri-implant bone height changes, and patient satisfaction were assessed.
RESULTS
Forty-six participants completed the 10-year follow-up. Implant survival was 100% in the 4-implant group and 96.7% in the 6-implant group. Seven new overdentures were made in the 4-implant group and 12 new overdentures were made in the 6-implant group due to excessive wear of the denture base and teeth. Clinical parameters did not differ significantly between groups. Mean marginal bone loss compared to baseline was 0.41 ± 0.37 mm in the 4-implant group and 0.70 ± 1.07 mm in the 6-implant group. Overall, patient satisfaction improved significantly, but did not differ between groups.
CONCLUSION
From this 10-year follow-up trial, it was concluded that bar maxillary overdentures on four or six implants in the posterior region of an augmented maxilla resulted in a comparable treatment outcome with high implant survival, limited loss of peri-implant marginal bone, and high patients' satisfaction. (Clinical trial registration number: NTR9729).
Topics: Humans; Denture, Overlay; Maxilla; Jaw, Edentulous; Denture Retention; Dental Prosthesis, Implant-Supported; Dental Implants; Treatment Outcome
PubMed: 36151932
DOI: 10.1111/clr.13997 -
The International Journal of Oral &... 2022To compare the 3D accuracy of copy dentures fabricated using an IOS (IOS copy denture) to that of copy dentures fabricated using the conventional method (conventional...
Accuracy of Implant-Supported Copy Overdentures Fabricated Using Either an Intraoral Scanner and a 3D Printer or the Conventional Copy Denture Technique: A Comparative Study.
PURPOSE
To compare the 3D accuracy of copy dentures fabricated using an IOS (IOS copy denture) to that of copy dentures fabricated using the conventional method (conventional copy denture).
MATERIALS AND METHODS
Maxillary and mandibular complete dentures were fabricated and scanned using a high-precision dental laboratory scanner to obtain data (basic data). Optical impressions of the dentures were recorded with the IOS to obtain data (IOS reference dentures). The IOS copy denture was fabricated using a 3D printer after configuring the data using the software. The conventional copy dentures were fabricated by making impressions of the complete dentures and pouring the room-temperature curing resin into them. The IOS copy dentures and conventional copy dentures were scanned using a high-precision dental laboratory scanner to obtain data. The data obtained were imported into 3D analysis software, and the IOS reference denture, IOS copy denture, and conventional copy denture data were each superimposed on the basic data for 3D evaluation by color mapping and calculation of the concordance rate.
RESULTS
Statistically significant differences in the concordance rates were observed between the IOS reference dentures and IOS copy dentures and between IOS copy dentures and conventional copy dentures (P < .05), but not between maxillary and mandibular complete dentures (P > .05).
CONCLUSION
The IOS copy dentures demonstrated greater accuracy than the conventional copy dentures.
Topics: Computer-Aided Design; Dental Implants; Dental Prosthesis, Implant-Supported; Denture, Complete; Denture, Overlay; Mandible; Maxilla
PubMed: 36170314
DOI: 10.11607/jomi.9575 -
Journal of Prosthodontic Research Feb 2021To critically review the literature using mini-implants for prosthetic rehabilitation of growing patients and to analyze the survival rates and clinical behavior of... (Review)
Review
PURPOSE
To critically review the literature using mini-implants for prosthetic rehabilitation of growing patients and to analyze the survival rates and clinical behavior of mini-implants.
STUDY SELECTION
Controlled clinical trials and case reports published in English, from January 2006 to October 2018, in a peer-reviewed journal in PubMed, Scopus, LILACS, and Cochrane Library databases. Studies using mini-implants for prosthetic rehabilitation in growing patients were included. Articles reporting mini-implants with a diameter greater than 3 mm, recruitment of adult participants, use of implants with other purposes than prosthodontic rehabilitation, and with a follow-up period shorter than 1 year, were excluded from the analysis. The selection was performed independently by two reviewers.
RESULTS
The selection resulted in the inclusion of eight articles. Although the studies presented heterogeneous protocols and follow-ups (varying from 1 to 8 years), only one case of failure was reported, which corresponded to crown displacement. All rehabilitation procedures were performed in the anterior region using mini-implants with different diameters (1.3-2.9 mm) and lengths (9-14 mm). The prosthetic rehabilitation included individual crowns and/or overdentures.
CONCLUSIONS
Mini-implant prosthetic rehabilitation seems to be a viable and promising option for provisional rehabilitation of growing patients, since it seems to preserve the bone structure while restoring function and esthetics until growth ceases, when then mini-implants can be replaced by standard implants.
Topics: Adult; Crowns; Dental Implants; Dental Prosthesis, Implant-Supported; Dental Restoration Failure; Denture, Overlay; Humans
PubMed: 32938858
DOI: 10.2186/jpr.JPOR_2019_338 -
Journal of Dentistry Dec 2020Denture fracture is one of the most common complications in prosthodontics and implant overdentures are reported to be at higher risk of fractures. Therefore, the aim of...
OBJECTIVE
Denture fracture is one of the most common complications in prosthodontics and implant overdentures are reported to be at higher risk of fractures. Therefore, the aim of this study was to assess the incidence and factors associated with the occurrence of fractures in patients treated with a single implant mandibular overdenture (SIMO) opposed by a conventional maxillary complete denture.
METHODS
A cohort of 152 patients, 65.1% female and 34.9% male, mean age 65.4 ± 8.5 years, were prospectively followed-up for a minimum of 1 year and up to 6.7 years. Patients received a single midline mandibular implant with a retention system incorporated in the overdenture: Straumann ball abutment and gold elliptical matrix (n = 37), Neodent ball/nylon matrix (n = 83), or Neodent Equator/nylon matrix (n = 32). Fracture was defined as a complete separation of denture parts and classified as midline fracture (over the implant region), or elsewhere. No metal reinforcement was incorporated into the overdenture. Incidence rates, life table analysis, Kaplan-Meier, and Cox regression were used for data analysis.
RESULTS
Overdenture fractures occurred in 49 patients (32.2% incidence), with repeated fractures in 16 patients. The majority of fractures were associated with function (42.6%) or due to the overdenture being dropped (36.8%). Overall incidence density was 0.14 fracture/patient/year. The risk of fracture was associated with the duration of the overdenture use (HR = 0.84; 95%CI = 0.71-0.99).
CONCLUSION
Midline denture fracture was a common complication in patients receiving SIMO treatment regardless of the implant / retention system. The use of metal reinforcement may be considered to reduce the risk of recurrent fractures.
CLINICAL SIGNIFICANCE
This clinical prospective study showed that single-implant mandibular overdentures are at high risk of midline fractures. Proper post-insertion monitoring and the identification and management of patient's individual risk factors are essential for the successful treatment in the long-term.
Topics: Aged; Dental Implants; Dental Prosthesis, Implant-Supported; Denture Retention; Denture, Complete, Lower; Denture, Overlay; Female; Humans; Incidence; Male; Mandible; Middle Aged; Prospective Studies
PubMed: 33159977
DOI: 10.1016/j.jdent.2020.103521 -
Technology and Health Care : Official... 2023Edentulism conducts to a recognized impairment of oral function with both aesthetic and psychological changes. These patients suffer from a multiplicity of problems with... (Review)
Review
BACKGROUND
Edentulism conducts to a recognized impairment of oral function with both aesthetic and psychological changes. These patients suffer from a multiplicity of problems with their dentures, such as insufficient stability, retention and pain during mastication. The rehabilitation of a part edentulous patient can be established using a wide range of prosthetic treatment options. The overdenture treatment uses a removable total denture that overlies retained teeth, tooth roots, or dental implants. In the literature it was shown that patients with removable overdentures supported and retained either by tooth roots or implants have more predictable prosthodontic outcomes.
OBJECTIVE
The aim of this review is to provide an overview on the overdenture with a focus on the tooth-supported telescopic overdenture.
METHODS
The literature research was performed in the Scopus, Web of Science, and Pubmed electronic databases. Document type was limited to papers written in English, without time restrictions. The Review was recorded in the international PROSPERO (International Prospective Register of Systematic Reviews) database with the following number CRD42022326415.
RESULTS
A total of 256 articles published were found from electronic searches, Two independent reviewers carried out the screening and the selection process for the studies. First, duplicate citations were eliminated. Then, the two Authors independently screened the retrieved articles by title and abstract of each citation to determine its suitability for inclusion. Finally, 13 full-text articles satisfied the inclusion criteria.
CONCLUSION
Prostheses supported by Frictional telescopic crowns offer an effective treatment alternative for patients with Severely reduced dentitions who do not want implant treatment or complete dentures.
Topics: Humans; Systematic Reviews as Topic; Jaw, Edentulous; Treatment Outcome; Denture, Overlay; Crowns
PubMed: 36617805
DOI: 10.3233/THC-220641 -
Journal of the Mechanical Behavior of... Jul 2021To measure the pressure distribution on the oral mucosa in vitro by comparing the pressure distributions under a complete denture and that of an implant overdenture.
PURPOSE
To measure the pressure distribution on the oral mucosa in vitro by comparing the pressure distributions under a complete denture and that of an implant overdenture.
MATERIALS AND METHOD
Anatomically accurate models and conventional Class I complete denture (CD) were produced and subjected to cyclic loading using a 100 N vertical centric and unilateral masticatory load with the universal testing machine (Instron 3369). Four miniature pressure sensors were positioned at four different locations in the intaglio surface of the denture and recorded pressure at 100 Hz frequency measured during a 10-cycle load at 1 Hz. Testing was repeated in different clinical combinations; CD vs. single implant overdentures (1-IOD), CD vs. two, three and four implant overdentures (2-IOD, 3-IOD vs. 4-IOD). The pressure profile (kPa) of complete dentures were measured and compared to the implant overdenture combinations. Collected data was statically analysed using SPSS and one-way analysis of variance.
RESULTS
The highest mean pressure was observed in CD group, with the mean mandible buccal ridge pressure value of 212.82 kPa ± 136.9 due to its surface area. There were no statistically significant differences between the group combinations (p = 0.146) but between various locations in the mean pressure recorded across the five denture/overdenture combinations.
CONCLUSION
CD experienced large pressure values on mandibular denture. 1-IOD demonstrated the most pressure in comparison to CD where with an increase in the number of implants used, it transformed the denture from being pure-borne mucosa to an implant overdenture, providing support and distributing the pressure amongst the implants.
Topics: Dental Implants; Denture, Overlay; Humans; Mandible; Mucous Membrane
PubMed: 33894527
DOI: 10.1016/j.jmbbm.2021.104531 -
Zhonghua Kou Qiang Yi Xue Za Zhi =... Dec 2021Many randomized controlled clinical trials have reported that implant overdentures provided edentulous people with better retention, stability, and masticatory... (Review)
Review
Many randomized controlled clinical trials have reported that implant overdentures provided edentulous people with better retention, stability, and masticatory performance than conventional complete dentures did. The design of implant overdentures for edentulous jaws should be based on comprehensive consideration of factors such as anatomic structure, alveolar bone resorption, inter-arch distance, choice of implant number/distribution and suprastructure. During the clinical procedure, timing of attachment connection, choice of impression technique, methods of maxilla-mandibular relationship registration, wax-up try-in, and prostheses delivery should be determined according to the type of implant overdentures. The appropriate choices and conduction of the above-mentioned procedures can guarantee the long-term success of the prostheses. This review elaborates on the clinical significance, treatment design, key steps in clinical procedure of implant overdenture, and summarizes follow-up and maintenance following denture delivery.
Topics: Denture, Overlay; Humans
PubMed: 34915647
DOI: 10.3760/cma.j.cn112144-20210925-00434 -
The Journal of Prosthetic Dentistry Oct 2022Patients with ectodermal dysplasia are characterized by anodontia or oligodontia. How their challenging prosthodontic rehabilitation might be optimized is unclear. (Clinical Trial)
Clinical Trial
STATEMENT OF PROBLEM
Patients with ectodermal dysplasia are characterized by anodontia or oligodontia. How their challenging prosthodontic rehabilitation might be optimized is unclear.
PURPOSE
The purpose of this crossover study was to evaluate the effect of resilient denture liner versus acrylic resin copings in complete overdentures for patients with ectodermal dysplasia. Outcome measures included patient satisfaction, retention, and periodontal health of the abutment tooth.
MATERIAL AND METHODS
Ten partially edentulous participants diagnosed with ectodermal dysplasia were recruited from the Faculty of Dentistry, Cairo University, Egypt, and enrolled in this crossover clinical trial. All participants received acrylic resin coping-retained maxillary complete overdentures (group N, stage 1). The acrylic resin copings were then replaced by a resilient denture liner (group S, stage 2). Patient satisfaction, retention, and periodontal health parameters were evaluated 1 week and 3 months after the completion of each stage. Patient satisfaction was assessed with a validated, reliable questionnaire. The results of the periodontal probing depths were tested with repeated measures ANOVA followed by the Bonferroni correction for pairwise comparisons. Tooth mobility, patient satisfaction, retention, and gingival index were tested by using the Wilcoxon signed ranked test. Ordinal data as the sixth and seventh domains of patient satisfaction were tested by using the McNemar test for paired comparisons (α=.05).
RESULTS
Three months after overdenture delivery, a statistically significant difference was found between the groups regarding retention (P=.025), probing depth (P<.001), and gingival index (P=.011) favoring the acrylic resin coping-retained overdentures. Results of tooth mobility (P=.035), overall attitude (P=.041), ease of eating (P=.023), denture comfort (P=.024), and degree of teasing (P=.038) on wearing the denture showed a statistically significant difference between the groups, favoring the resilient denture liner.
CONCLUSIONS
In children with oligodontia and ectodermal dysplasia, the resilient denture liner-retained maxillary complete overdenture enhanced patient satisfaction and tooth mobility of anterior teeth, while minimally jeopardizing the periodontal condition of the abutment teeth.
Topics: Child; Humans; Denture Retention; Denture Liners; Cross-Over Studies; Acrylic Resins; Dental Prosthesis, Implant-Supported; Tooth Mobility; Personal Satisfaction; Dental Implants; Patient Satisfaction; Denture, Overlay; Ectodermal Dysplasia
PubMed: 33674122
DOI: 10.1016/j.prosdent.2020.09.049 -
The International Journal of... 2021To report changes in denture satisfaction and oral health-related quality of life (OHRQoL) in edentulous patients treated with two-implant mandibular overdentures (IODs)... (Randomized Controlled Trial)
Randomized Controlled Trial
PURPOSE
To report changes in denture satisfaction and oral health-related quality of life (OHRQoL) in edentulous patients treated with two-implant mandibular overdentures (IODs) over a follow-up of 8 to 10 years.
MATERIALS AND METHODS
This is a follow-up of a previous study carried out between 1997 and 2005. The patients were originally randomly divided into one group receiving IODs and another group who had their conventional mandibular dentures relined (RCD group). The RCD group was offered and received IODs at the 2-year follow-up. The participants completed a self-administered questionnaire containing demographics, 15 variables related to denture satisfaction, and 20 questions from the Oral Health Impact Profile (OHIP-20). Changes over time were analyzed using multilevel linear models for denture satisfaction and multilevel ordinal regression analyses for OHIP-20 variables. Comparisons between groups were analyzed using Mann-Whitney U test for ordinal and t test for metric data.
RESULTS
Disregarding patients who passed away during follow-up, the 29 responders represented a response rate of 76%. The degree of denture satisfaction and the OHIP-20 scores remained high and stable in the IOD group over the 10-year observation period for all but one variable. The same factors showed only a modest improvement in the RCD group for the first 2 years; however, during the subsequent 8 years of the observation period (after receiving IODs), denture satisfaction and OHIP-20 scores improved to the same level as the original IOD group.
CONCLUSION
The positive effect on denture satisfaction and OHRQoL of edentulous patients treated with two-implant mandibular overdentures remained unchanged 8 to 10 years after treatment.
Topics: Dental Implants; Dental Prosthesis, Implant-Supported; Denture Retention; Denture, Complete, Lower; Denture, Overlay; Follow-Up Studies; Humans; Mandible; Oral Health; Patient Satisfaction; Personal Satisfaction; Quality of Life
PubMed: 33616561
DOI: 10.11607/ijp.7521