Implant-supported Overdentures Research Articles

The effect of low-level laser 810 nm and light-emitting diode photobiomodulation (626 nm) on the stability of the implant and inflammatory markers interleukin-1 beta and prostaglandin E2, around implants

One of the most common problems in edentulous patients is the low stability of lower dentures. The most effective method to overcome this problem is implant-supported overdentures. After placing an implant, for the process of osseointegration to be complete and successful, it is better that patients do not use their denture for few months. This may be nonconvenient for patient because they are unable to speak and eat properly. The aim of this study was to evaluate the effect of low level laser (LLL) and light-emitting diode (LED) photobiomodulation on implant stability as well as their effect on interleukin-1 beta (IL-1β) and prostaglandin E2 (PGE2) biomarkers around implant in lower anterior region (over denture). In this clinical trial, 36 implants were placed in fully edentulous mandibles (12 people per person - three implants in areas of midline and canine). Each of the implants was randomly placed in one of three groups of laser, LED, and control. LLL (power of 50 mw and the amount of 20 J/cm2 for each implant) and LED with dose (20 mw/cm2) were irradiated on the day of surgery (zero), 3, 7, 10, and 14 days. The stability of implants was measured on the day of surgery and weeks 3, 4, and 8 after surgery with Periotest. The inflammatory biomarkers of IL-1β and PGE2 were also collected from gingival crevicular fluid around implants in 4 and 8 weeks. The collected data were analyzed by ANOVA statistical tests.pvalue<0.05 considered significant. The amounts of Periotest significantly increased 3rd week after surgery in the control group (P < 0.001). However, the laser group and LED group were associated with minimal changes, which indicates lower stability of implant in 3rd week in control group but no changes in stability of test groups (laser and LED). Laser and LED had no effect on the level of IL-1β and PGE2 in 4 and 8 weeks. The use of LLL or LED has a positive effect on the stability of the implants 3 weeks after surgery.

Effect of implant number on the movement of mandibular implant-supported overdentures under biting force: An in-vitro study.

Many studies have investigated the effect of implant number on the performance of implant-supported overdentures (ISO), but few have focused on denture movement. This in-vitro study aims to investigate the influence of implant number on the movement of mandibular ISO under biting force. An edentulous mandibular cast and 12 overdentures (n = 12) were fabricated, and a locator attachment system with blue nylon inserts was chosen for this study. Four implant positions were simulated: anterior midline (1-ISO), bilateral canine regions (2-ISO), anterior midline and bilateral molar regions (3-ISO), and bilateral canine and molar regions (4-ISO). After positioning an overdenture on one of these four casts, vertical loads were applied to the incisor region (40 N), the left canine (55 N), or molar (100 N) regions. The movements at the loading point and the right distal edge were measured. Significance across groups was analyzed using one-way analysis of variance and post hoc Tukey honest significant difference test. P < .05 was considered statistically significant. On incisor loading, the 3-ISO showed the least movement, and no significant movement was detected across the other three groups. Upon canine loading, the largest displacement appeared in the 1-ISO group, at both the loading point and the right distal edge. Additionally, overdentures anchored by three or four implants, especially the 4-ISO, showed significantly smaller movement on molar loading. The implant number influences the movement of mandibular ISO, and overdentures retained with three or more implants have minimal movement.

A comparative evaluation of fatigue resistance of two different implant overdenture stud attachments with two different denture base materials: An in vitro study.

Introduction:The two implant-supported overdentures have overcome the retention and stability-related problems of conventional mandibular denture. Stud attachments are widely available, less expensive, and easy to use.Aims and Objectives:To determine fatigue resistance of two different stud attachments with two denture base materials – autopolymerizing and heat cure acrylic resin till 4320 cycles simulating 03 years of service.Materials and Methods:Stud implant overdenture attachments, i.e., ball and socket and Dalla Bona attachments were tightened over the implants in two different mandibular edentulous base models. The housings were incorporated with both direct (chairside) and indirect (laboratory) technique into conventional mandibular dentures. These overdentures were subjected to continuous removal and insertion on Universal Testing Machine till 4320 cycles simulating 3 years of service assuming that patient takes out denture, 4 times in a day. The fatigue resistance was calculated for 0, 1440 (1 year), 2800 (2 years), and 4320 (3 years) cycles. Unpaired and paired t-tests were applied to find the level of significance.Results:Ball and socket attachments housed with heat cure acrylic resin (indirect technique) had the highest values of fatigue resistance at all cycles. Following were Dalla Bona attachments with autopolymerizing acrylic resin (direct technique), ball and socket attachments with autopolymerizing acrylic resin (direct technique), and Dalla Bona attachments with heat cure acrylic resin (indirect technique) as per statistical analysis.Conclusion:Two implant-supported mandibular overdenture with ball and socket attachments incorporated by indirect technique showed higher values in terms of retention and absence of disengagement/fracture of components.

Effect of Cyclic Dislodging on the Retention of Two Attachment Systems for Implant-supported Overdentures: An In Vitro Study

The aim of this study was to compare and evaluate the retention of two new attachment systems used for implant-supported overdentures subjected to insertion-removal cycles. Twenty custom-manufactured polyvinyl chloride models mimicking implant-retained over-dentureresin blocks were fabricated and divided into two groups (n = 10): group 1 ('Kerator' attachment) and group 2 ('EMI' attachment). Each model received two parallel implants (JD evolution®) 20 mm apart and was subjected to cyclic retention forces of 10, 100, 1000, 5000, 10000 and 14600 cycles using a universal testing machine in a 0.9% sodium chloride water solution at 22° C. Data were analyzed using one-way analysis of variance; the level of significance was set at a < 0.05. The 'Kerator' and 'EMI' attachment systems reported a significant decrease in retention (64 and 56.6% respectively) after 14600 insertion-removal cycles (p < 0.001). The 'EMI' attachment showed significant higher loss of retention than the 'Kerator' attachment all along the 14600 cycles (p < 0.05) except for cycles 100 and 5000 (p > 0.05). Within the limitations of this in vitro study, both attachments reported satisfactory retentive values during the 14600 cycles, the 'Kerator' attachment showed better retention than the new 'EMI' attachment. The initial retentive force of both attachments has gradually decreased. Both attachment systems evaluated in this study can be used in clinical practice for implant-supported overdentures.

Maxillary Tissue Changes under Complete Dentures Opposing Two Different Mandibular Implant Support Overdentures

Aim: The aim of the study was to study the maxillary tissue changes under complete dentures opposing mandibular implant-supported overdenture retained by either two or single midline implant. Material and Methods: Fourteen completely edentulous patients were chosen for this study. Patients were randomly divided into two groups: Group I; Seven patients received mandibular overdenture retained with 2 implants in the canine region bilaterally with ball and socket attachment. Group II; Seven patients received mandibular overdenture retained with single implant in the midline with ball and socket attachment. Clinical and radiographic evaluations were done by measuring the thickness of the soft tissue overlying the anterior maxillary ridge and amount of bone resorption respectively, measured at 2 points 1 cm and 2 cm bilaterally to the midline at time of implant loading, 3, 6, 9 and at 12 months. Results: there was non-significant increase in maxillary mucosa thickness in both groups at both points of measurements. Also, there were posterior radiographic bony changes in maxillary ridge within both groups. There was significant increase in maxillary bony changes in Group II in comparison to Group I. Conclusion: Within the limitations of this study, it was concluded that there was slight increase in the soft tissue thickness overlying the anterior maxillary ridge in each group. But there was slight increase in Group II more than Group I. More bone resorption in posterior region of maxilla was observed in Group II patients.

Evaluation of Predictability of Suitable Implant Lengths as related to Accurate Treatment Planning using Recent Roentgenographic Measures: A Key to Success

Selection of suitable length of dental implants is very subjective and largely depends on clinical evidences and operator's expertise. The present study was aimed to assess the role of cone beam computed tomography (CBCT) and cephalograms as far as the selection of right implant length is concerned. The study includes 220 patients for whom radiographic and follow-up records were obtained. There were 105 males and 115 females in the age range of 22 to 58 years. A total of 98 implant sites in different edentulous areas were studied. Length of implant was predicted at treatment planning and compared with finally placed implant at surgical stages. It also includes the in-depth exploration of (1) number of implants placed per patient, (2) implant per edentulous areas, (3) implant location, and (4) implant region. For prediction of implant lengths, CBCT results were obtained and compared with cephalometric findings. Accuracies of implant lengths as planned by CBCT and cephalometric images were also studied at treatment planning and surgical stages. Statistical analysis and results: Upon statistical comparisons, we found that larger implant lengths chosen at treatment planning stage did not change in 65.5% of patients. In addition, the smaller length implants were just about the same as that with larger dimensions. The CBCT results were satisfactory (up to 98.5%). Cephalometry was performed well in this prediction, especially in posterior mandible (87.9%). However, its performance in anterior maxillary region was not satisfactory (69.6%). Intergroup comparisons of CBCT and cephalometric results at different regions were significant (p < 0.001). Our study results show insignificant changes in the length of implants that was exactly planned using CBCT scans. Therefore, accurate prediction of implant lengths can be done using CBCT scans as they have superior and advanced tools that facilitate presurgical decision-making. Lateral cephalometric evaluation has been shown as an imperative radiographic tool for determining implant lengths as it confirmed the significance bone resorption on the selection of implant length at different sites. The CBCT and lateral cephalogram offer excellent anatomical details that can be judiciously applied for treatment planning and other clinical decision-making, including selection of correct implant length. Our study advocates thorough cephalometric evaluations of mandible wherein implants are to be placed for implant-supported overdentures.

Comparative study of splinted and unsplinted implant-retained maxillary overdentures without palatal coverage: A literature review

The palatal coverage is considered as an auxiliary element in the distribution of tensile strains on implant maxillary total prosthesis (implant overdentures) bases, either implant-supported or retained. However, complaints in some patients due to palate and phonetic impairment are constant. The palatal coverage removal would allow the improvement of these issues as well as pharyngeal control, salivary flow and hygiene. Thus, this literature review proposed to analyze the survival rates of dental implants retaining an implant maxillary overdenture without palatal coverage in edentulous maxilla. The review was conducted in Medline database, via PubMed between 2000 to 2016 period, and limited to English language publications. The search strategy took the following key-words, referencing title and / or abstract: dental implants; maxilla; maxillary; overdenture; and palatal coverage. According the data, the rehabilitation of the maxillary edentulous with four implant-supported overdentures with bar attachments and implant-retained with ball attachments has shown great survival rates of dental implants, but there are a few studies reporting the survival rate of implant overdentures. It was concluded that the prosthetic rehabilitation of total maxillary edentulous patients is viable through palateless implant overdentures when a minimum of four to six implants were used with careful planning and execution. KeywordsDental Implants; Maxilla; Overdenture and Palatal coverage.

Mandibular Implant-supported Overdentures: Prosthetic Overview.

Implant-supported overdentures are becoming the treatment of choice for the completely edentulous mandible. They significantly improve the quality of life in edentulous patients. For this review article, the literature was searched to identify pertinent studies. No meta-analysis was conducted because of high heterogeneity within the literature. Accordingly, in this review article, the author provides an update on implant-supported mandible overdentures with regard to the number of implants, type of loading, stress–strain distribution, mode of implant-to-denture attachment, occlusal considerations and complications.

Quality of Life of Implant-Supported Overdenture and Conventional Complete Denture in Restoring the Edentulous Mandible: A Systematic Review.

The aim of this systematic review was to evaluate the oral health-related quality of life (OHRQoL) associated with an implant-supported overdenture (IOD) compared with a conventional complete denture (CCD) in restoring the edentulous mandible. A literature search was performed in the MEDLINE (through Ovid), PubMed, and Cochrane Library databases for articles published between 1990 and July 2016. The search was restricted to articles published in English. Two reviewers selected the articles based on the inclusion and exclusion criteria. Another 2 reviewers analyzed the data. From 108 articles that were obtained, 5 articles met the inclusion criteria. Four studies had a high risk of bias, and 1 study had an unclear risk of bias. There was a significant difference in Oral Health Impact Profile (OHIP) scores between pre- and post-treatment within the groups and in posttreatment OHIP scores between IOD and CCD groups. Regarding the edentulous mandible, patients benefited more from the IOD with 2 implants, as determined by OHRQoL scores. Considering the differences between each domain of the Oral Health Impact Profile (OHIP) questionnaire and the lack of long-term performance, more random control trials with sufficient sample sizes need to be designed to investigate long-term performance after treatment.

Fracture Strength of Acrylic Resin Reinforced with Glass Fibers in Simulated Implant-Supported Overdenture Abutments

Objective: To evaluate the effect of glass fibers on acrylic resin fracture strength in simulated implant-supported overdenture (IOD) abutments.

Fracture Strength of Acrylic Resin Reinforced with Glass Fibers in Simulated Implant-Supported Overdenture Abutments

&#x0D; &#x0D; &#x0D; &#x0D; &#x0D; Objective: To evaluate the effect of glass fibers on acrylic resin fracture strength in simulated implant-supported overdenture (IOD) abutments.&#x0D; Methods: A model was designed to simulate the clinical situation of an IDO (50 12 1.5 mm). Thirty models were divided into three equal groups: ten models not supported with glass fibers (control group), ten models with one layer of glass fibers (experimental group I) and ten models with two layers of glass fiber (experimental group II). All models were exposed to a three-point bending test, and fracture loads were analyzed using a one-way analysis of variance (ANOVA) followed by Bonferroni post-hoc test.&#x0D; Results: IOD models reinforced with two layers of glass fibers (experimental group II) showed a mean ultimate load at fracture of 48.69 ± 3.71 Newton (N) compared to mean loads of 32.78 ± 2.41 N and 24.42 ± 2.73 N for the models reinforced with one layer (experimental group I) and non-reinforced with glass fibers (control group), respectively. ANOVA showed a statistically significant difference between the three groups regarding the mean ultimate load at fracture, and Bonferroni post-hoc test showed statistically significant differences between both experimental groups and the control group as well as between experimental group I and experimental group II.&#x0D; Conclusions: The fracture strength of IDO abutments increases significantly by the addition of acrylic resin pre-impregnated with glass fibers, even when the thickness of acrylic is thin.&#x0D; &#x0D; &#x0D; &#x0D; &#x0D;

Fracture Strength of Acrylic Resin Reinforced with Glass Fibers in Simulated Implant-Supported Overdenture Abutments

&#x0D; &#x0D; &#x0D; &#x0D; &#x0D; Objective: To evaluate the effect of glass fibers on acrylic resin fracture strength in simulated implant-supported overdenture (IOD) abutments.&#x0D; Methods: A model was designed to simulate the clinical situation of an IDO (50 12 1.5 mm). Thirty models were divided into three equal groups: ten models not supported with glass fibers (control group), ten models with one layer of glass fibers (experimental group I) and ten models with two layers of glass fiber (experimental group II). All models were exposed to a three-point bending test, and fracture loads were analyzed using a one-way analysis of variance (ANOVA) followed by Bonferroni post-hoc test.&#x0D; Results: IOD models reinforced with two layers of glass fibers (experimental group II) showed a mean ultimate load at fracture of 48.69 ± 3.71 Newton (N) compared to mean loads of 32.78 ± 2.41 N and 24.42 ± 2.73 N for the models reinforced with one layer (experimental group I) and non-reinforced with glass fibers (control group), respectively. ANOVA showed a statistically significant difference between the three groups regarding the mean ultimate load at fracture, and Bonferroni post-hoc test showed statistically significant differences between both experimental groups and the control group as well as between experimental group I and experimental group II.&#x0D; Conclusions: The fracture strength of IDO abutments increases significantly by the addition of acrylic resin pre-impregnated with glass fibers, even when the thickness of acrylic is thin.&#x0D; &#x0D; &#x0D; &#x0D; &#x0D;

Bar versus ball attachments for implant-supported overdentures in complete edentulism: A systematic review.

Implant-supported overdenture is one of the most predictable treatment options used in complete edentulism. However, differences have been reported between bar and ball attachments used to retain overdentures in terms of patient satisfaction and prosthesis retention. The purpose of this study is to compare the effectiveness of bar and ball attachments for conventionally loaded implant-supported overdentures in completely edentulous patients to improve patient satisfaction and prosthesis retention. We conducted the review according to the Cochrane methods and following MECIR standards. We searched Cochrane Oral Health Group Trial register, Cochrane Central Register of Controlled Trials, MEDLINE, and the WHO ICTRP (March 31, 2017). Two review authors assessed trials for inclusion and risk of bias, extracted data, and checked for accuracy. We have expressed results as risk ratio or mean differences, together with their 95% confidence intervals. We included 10 trials (465 participants). After 5 y, one trial reported higher patient satisfaction when bar attachment was used (MD 1.30, 95% CI 0.20-2.40), and reported no difference between both systems in prosthesis retention (MD -0.90, 95% CI -1.90 to 0.10). Two trials reported no implant failures after 1 and 5 y in both attachments. Downgrading of evidence was based on the unclear risk of bias of included studies and the wide CI crossing the line of no effect. There is insufficient evidence to support bar or ball attachment to be used with implant-supported overdentures in completely edentulous patients to improve patient satisfaction and prosthesis retention (PROSPERO 2014:CRD42014014594).

Effect of Prosthetic Rehabilitation on Nutritional Status in Older Adults

This study aimed to assess the effectiveness of various combinations of the implant-supported overdentures and removable partial dentures on nutritional status in a randomized sample of 150 older adults. The body mass index (BMI) and the Mini Nutritional Assessment (MNA) were recorded before and after prosthetic rehabilitation. There was statistically significant improvement in the MNA and BMI, measured before prosthetic rehabilitation, and after 6 and 12 months (P &lt; .001). The prosthetic rehabilitation of patients 65 years and older, using implant-supported overdentures and removable partial dentures, improved BMI and MNA scores used in the assessment of nutritional status.

Effect of Implant Number, Distribution with Different Attachments on the Retention and Stability of Implant Supported Overdenture

It was stated that the “PREVENTION IS BETTER THAN CURE” Today, with the more attention on preventive measures in prosthodontics, the use of implant supported overdenture has increased to the point where it is now a feasible alternative to most treatment plan outlines in the construction of prosthesis for patients (Sheldon Winkler, 2009). Evaluate the effect of number and distribution of an implant upon in vitro retention and stability of a simulated implant-supported overdenture. In this in-vitro experimental study a model simulating a mandibular edentulous ridge with 7 dental implants analogs inserted in the model approximating the tooth position in the natural dentition was constructed. A two overdenture housing for each type of attachment made of acrylic resin with three hooks attach to occlusal surface of it which connected to three chains attached to a force gauge testing machine was used to measure peak load (N) required to disconnect (dislodge) an attachment in three directions vertical, rotational and oblique. Two different type of attachments have been studied (Ball, Locator). This study was aimed to evaluate retention and stability of implant-retained overdentures based upon implant number and distribution. One way ANOVA analysis of variance test indicated that there were significant differences at P&lt;0.05, using Duncan`s Multiple Range Test for comparison among the groups of Ball and Locator attachment indicated that groups of multi implants recorded the significantly higher measured peak load (N) in the three directions of dislodgement variation in implant`s number and distribution affect the retention and stability of implant supported overdenture according to type of attachment utilized.

Effect of Simulated Mastication on the Retention of Locator Attachments for Implant-Supported Overdentures: An In Vitro Pilot Study.

Limited information is currently available relative to the effect of masticatory loads on the retentive properties of Locator attachments. The aims of this in vitro study were to assess and compare the effect of simulated mastication on the retention of white, pink, and blue Locator inserts for overdentures retained by 2 implants. Thirty specimens simulating a nonanatomic edentulous flat ridge with two implants and an overdenture were divided into 3 groups according to the color of the fitted insert: transparent clear group (n = 10), pink group (n = 10), and blue group (n = 10). Retention forces were measured in an axial direction initially and after 100,000 cycles of simulated masticatory loads. One-way ANOVA followed by Tukey's post hoc tests were used to compare retention values and percentage retention loss between the 3 groups with significance set at p = 0.05. The 3 groups presented significant differences in retention at baseline (9.95 ± 1.91 N, 15.43 ± 4.08 N, and 41.73 ± 9.29 N for the blue, pink, and clear groups, respectively) and after simulated mastication (6.37 ± 2.64 N, 14.00 ± 3.89 N, 38.20 ± 5.11 N for the blue, pink, and clear groups, respectively). Within the same group, cyclic loading did not significantly affect retention in the clear and pink groups, while the blue inserts showed a significant retention loss (-37%) after loading. The results suggest that short-term simulated mastication affects the extra-light blue inserts but not the more-retentive inserts.

Peri-implant health, clinical outcome and patient-centred outcomes of implant-supported overdentures in the mandible and the maxilla

Objectives/Aims:The primary aim of this retrospective pilot study was to evaluate the clinical outcome of overdentures on four non-splinted maxillary implants compared to the mandible using locator attachments and secondly to assess patient's opinion of the treatment.Materials and Methods:The treatment protocol used here is summarised as a single-stage surgical approach followed by immediate loading (same day in 12 of 17 patients) of a removable prosthesis in the maxilla and mandible. Most of the implants were installed into fresh extraction sockets. Clinical outcomes were evaluated in 68 southern implants, straight (non co-axis) or angulated (co-axis) in 17 patients. Patients were examined by independent examiners at an average follow-up of 14.5 months after implant placement.Results:Outcomes measured were implant survival, bone loss, bleeding on probing, probing pocket depths and plaque score in addition to quality of life measured with OHIP-14 questionnaires. An overall implant survival of 100% was achieved. The mean marginal bone level (mm) over the entire cohort of 66 measured implants was (1.4 mm; range, 0–5.5). A significant difference (P=0.01) was found between bone level, from implant head to bone contact in the maxilla (M, 0.9 mm; s.d., 1.1; range, 0–4) and the mandible (M, 1.7; s.d., 1.0; range, 0–5.5). The marginal bone-to-implant head distance with the angulated co-axis implants was 1.9 mm (s.d., 1.5; range, 0–5.5) compared to non co-axis, mean 1.2 mm (s.d., 1.1; range, 0–4) (P=0.01). The OHIP-14 overall mean was 3.3 (out of a maximum of 56).Conclusion:The implant survival was 100% and the patients benefited from the overdenture treatment on four non-connected implants. The extremely low OHIP-14 indicated a very high level of patient satisfaction following treatment. The results of this study merit further long-term investigation to fully investigate the success of immediately loading implants in the maxilla as well as cost-benefit.

Retrospective cohort study of rough-surface titanium implants with at least 25\xa0years\u2019 function

BackgroundThe longitudinal clinical outcomes over decades contribute to know potential factors leading to implant failure or complications and help in the decision of treatment alternatives.MethodsThe cases of all patients who received dental implants treated with titanium plasma-sprayed surfaces and whose prostheses were set in the period 1984–1990 at seven private practices were retrospectively analyzed. The cumulative survival rate, the cumulative incidence of peri-implantitis, and the complication-free prosthesis rate were calculated with Kaplan-Meier survival curves, and the factors’ influence on implant survival rate and the incidence of peri-implantitis were determined by a single factor in univariate analyses and multivariate analyses.ResultsA total of 223 implants and 106 prostheses were applied to 92 patients, and approx. 62% of the implants and patients dropped out over the 25 years following their treatment. The cumulative survival rates of the implants at 10, 15, and 25 years were 97.4, 95.4, and 89.8%, respectively. A significant difference was observed in the implant position. The cumulative incidences of peri-implantitis at 10, 15, and 25 years were 15.3, 21.0, and 27.9%, respectively. Significant differences were observed in the gender, implant type, and width of keratinized mucosa around the implant. The cumulative survival rates of mechanical complication-free prostheses at 10, 15, and 25 years were 74.9, 68.8, and 56.4%, respectively. The difference in the type of prosthesis resulted in significant differences.ConclusionsThe high rate of dropout during follow-up indicates the difficulty of determining long-term (> 25 years) prognoses. The gender, location, and width of keratinized mucosa affected the development of peri-implantitis, resulting in late failures. Implant-supported overdentures were frequently repaired. Tooth implant-supported prostheses are not recommended for long-term survival.

Immediately Loaded, Implant-Supported Overdentures Retained by a Milled Bar: An Up-to-5-Year Retrospective Clinical Study.

This study was conducted as an up-to-5-year retrospective investigation estimating survival rate, marginal bone loss (MBL), patient satisfaction, complications, and required prosthodontic maintenance for immediately loaded, milled bar-retained, implant-supported overdentures (ISOs). A total of 60 patients, 69 overdentures, and 179 implants were examined. The implant survival rate was 96.65%, and the mean MBL was 0.57 mm (SD 0.52). High subjective satisfaction ratings, ranging from 3 to 5 with a mean of 4.3 (SD 0.6), were observed. The incidence of complications and prosthetic maintenance was low and required short standard appointments. The present findings encourage the use of immediately loaded, milled bar-retained ISOs.

Oral Health-Related Quality of Life in Brazilian Patients Wearing Three Types of Lower Dentures: Psychosocial and Clinical Aspects

&lt;p&gt;&lt;em&gt;The purpose of this study was to evaluate the oral health-related Quality of Life (QoL) of patients with edentulous lower jaws rehabilitated with conventional or implant-supported dentures&lt;/em&gt;&lt;em&gt;. In the quest for greater QoL, especially among the elderly, it is important to evaluate how the use of &lt;/em&gt;&lt;em&gt;dentures&lt;/em&gt;&lt;em&gt; impacts physical and emotional well-being. &lt;/em&gt;&lt;em&gt;Brazilian health care policy makers should be informed of t&lt;/em&gt;&lt;em&gt;he advantages of &lt;/em&gt;&lt;em&gt;rehabilitation with implant-supported dentures. &lt;/em&gt;&lt;em&gt;A cohort of 78 edentulous seniors was divided into three groups of 26 according to denture type: Conventional (CD), &lt;/em&gt;&lt;em&gt;Implant-Supported Overdenture (IOD)&lt;/em&gt;&lt;em&gt; and Fixed-Implant Prosthesis&lt;/em&gt;&lt;em&gt; (&lt;/em&gt;&lt;em&gt;FIP)&lt;/em&gt;&lt;em&gt;. To evaluate QoL, clinical and &lt;/em&gt;&lt;em&gt;sociodemographic &lt;/em&gt;&lt;em&gt;information was collected and the OHIP-20 questionnaire was administered, using a 5-point frequency scale, including a “don’t know” option. &lt;/em&gt;&lt;em&gt;Chewing and pronunciation were less impacted in FIP and IOD than in CD (p=0.013 and p=0.027, respectively), while patients in the CD group reported more adaptation difficulties (p=0.006) and more frequent avoidance of hard-to-chew foods (p=0.032).&lt;/em&gt;&lt;em&gt; The majority reported no interference of dentures with appearance and social life, regardless of denture type.&lt;/em&gt;&lt;em&gt; Depending on the patient’s biological and financial circumstances, implant-supported dentures is the form of rehabilitation of edentulism providing the greatest improvement in QoL. The reported limitations and difficulties had no significant impact on satisfaction and QoL.&lt;/em&gt;&lt;em&gt;&lt;/em&gt;&lt;/p&gt;