Mandibular Conventional Dentures Research Articles

A 1-Year Parallel-Group Randomized Clinical Trial Comparing the Effectiveness of a Mandibular Complete Denture vs an Early Loaded Single-Implant Overdenture.

To assess the effectiveness of converting a conventional mandibular denture (CMD) into a single-implant mandibular overdenture (SIMO). Edentulous patients received a new CMD and were randomly assigned to the CMD or SIMO group. For SIMO patients, a midline early-loaded implant was inserted and incorporated into the CMD after 3 weeks. Patient satisfaction and oral health-related quality of life were assessed at baseline and up to 1 year. Regression models were constructed using Generalized Estimating Equation (GEE). After 12 months, 32 patients were assessed (CMD: n = 17; SIMO: n = 15). Significant improvement was observed for the SIMO group compared to baseline measures. SIMO may be considered an effective alternative for patients unsatisfied with their CMDs.

Clinical and Radiographic Evaluation of Marginal Bone Level (BL) in Two Implant-Retained Mandibular Overdenture With Lingualized Occlusion (LO): A Six-Year Clinical Trial.

The objective of this research was to assess the marginal bone loss and stability in a lingualized occlusal scheme with implant-supportedmandibular overdenturesas a viable solution for individuals experiencing difficulties with the retention of conventional mandibular dentures. The study assessed the marginal bone level (BL) using radiographic evaluation and clinically by evaluating periodontal health using probing depth indexvalues over a period of 6 years. Ten completely edentulous male patients with a bone height (BH) of 15-25 mm at the mandibular symphyseal region and dissatisfaction with their mandibular conventional complete denture were included in the study. Patients were willing to accept the conditions of the study and provide informed consent. Bleeding index, plaque index (PI), probing depth, and crestal BL were accessed during the follow-up period. Marginal BLs using Wical and Swoop Analysis method were evaluated at baseline (BL) (during loading), 3 yearsand 6 years post-loading. During the observation period, there was no incidence of implant loss, and all patients expressed contentment with the retention, stability, chewing functionality, and esthetic appeal of their dentures.Marginal BLs through clinical and radiographic evaluation, periodontal health using bleeding on probing (BOP), and probing depth were assessed during the follow-up period. Throughout the entire period of observation, no instances of implant displacement were detected. The study found that the use of a lingualized occlusal scheme with two implant-retained mandibular complete overdenture effectively transmitted horizontal loads, reduced stress on individual implants leading to decreased bone loss, and increased stability.

Marginal Bone Level Measurements of Unsplinted Implants Used for Mandibular Overdentures: A Six-Month Randomized Prospective Clinical Study Comparing Early and Delayed Loading Protocols.

Background and purpose Implant-supported mandibular overdentures are a good alternative for patients having poor retention of mandibular conventional dentures. The aim of this prospective study was to evaluate and compare the results between early loading and delayed loading of mandibular overdentures on two unsplinted implants. Materials and methods A total of 14 completely edentulous male patients in the age group of 50-60 years were selected for the study. Two 3.5×13 mm implants were placed in the mandibular interforaminal region. The patients were divided into two groups: (i) the test group in which the overdenture was connected after one week of surgery, and (ii) the control group, in which the overdenture was connected three months after surgery. Marginal bone levels were evaluated at baseline (during loading), three months, and six months post loading. Unpaired 't' test was used for the comparison of intergroup measurements. Results No implants were lost. Marginal bone resorptions showed no statistically significant differences between the two groups over six months period after loading. Conclusion The results of this prospective clinical study suggested that there was no significant difference in the clinical and radiographic state of patients treated with implant-supported mandibular overdentures loaded either one week or three months after implant surgery.

An 8-10 Year Follow-up of Denture Satisfaction and Oral Health-Related Quality of Life with Implant-Retained Mandibular Overdentures.

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. 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. 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. 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.

Utilizing Edentulous Ridge as Autogenous Block Graft for Buccal Contouring Horizontal Ridge Augmentation

IntroductionAugmenting the edentulous anterior mandible can be a challenge. This case report describes a novel technique that combines bone reduction and buccal contouring using an autogenous block graft.Case PresentationA patient presented with a conventional mandibular denture that had poor retention. The patient had a deficient ridge that could not support dental implants without hard tissue augmentation. The anterior mandible was reduced vertically with an osteotomy to allow harvest of an autogenous block graft for horizontal ridge augmentation. After 8 months, dental implants were placed in a ridge with adequate width and patient proceed to final prosthesis.ConclusionThe technique may be considered in the atrophic mandible when a narrow ridge requires vertical height reduction as an autogenous block can be harvested and placed at a single surgical site.

Stress free versus Hader bars for immediately loaded two-implant retained mandibular overdentures. A one-year randomized trial evaluating marginal bone loss and patient satisfaction

Objectives: The aim of this study was to compare marginal bone loss and patient satisfaction with stress free implant bar (SFI bar) and Hader bar used for immediately loaded two-implant retained mandibular overdentures Material and methods: Ten edentulous patients with conventional mandibular dentures due to atrophied mandibular ridge were randomly assigned to 2 groups and received new conventional dentures. After 2-month adaptation period, 2 implants were inserted in the canine regions of the mandible using computer guided surgery and the flapless approach. Implants were connected with Hader bar (group 1) or SFI bar (group 2) and were loaded by mandibular overdentures within 3 days after implant placement. Marginal bone loss was evaluated at baseline, 6, and 12 months later using cone beam CT. Patient satisfaction with conventional dentures and implant overdentures was measured using questionnaire based on visual analogue scale (VAS) Results: Marginal bone loss increased significantly from 6months to 12 months for both groups. Hader bar showed significant higher bone loss than SFI bar after 6 months (p=.001) and 12 months (p<.001). For both groups, implant overdentures recorded significant higher satisfaction for tested parameters (except ease of cleaning) compared to conventional dentures. SFI bar recorded significant higher satisfaction compared to natural dentition, satisfaction with retention, stability, ease of cleaning, ease of chewing than Hader bar. Conclusion: Within the limitations of this study, SFI bar is a beneficial attachment for immediately loaded 2-implant retained overdenture was associated with reduced marginal bone loss and increased patient satisfaction compared to Hader bar.

A 10-Year Follow-up of Rehabilitation of Severely Atrophied Edentulous Mandible with Implant Supported Over Denture: A Case Report

Background: Retention and support for the conventional complete dentures primarily dependent upon theresidual alveolar ridge and mucosa. Patients with poor mandibular ridge foundation usually suffer frominadequate denture retention and stability. In such cases, implant-supported overdenture treatment providesimproved prosthesis retention and support and thus greatly increasing patient’s acceptance toward prosthesisas when compared to conventional dentures.Case Report: The present case report describes a successful rehabilitation of resorbed mandibular ridgewith an overdenture supported by two implants and 10 years of follow-up was performed and discussed.Conclusion: Implant-supported overdenture provides a strong return for the investment in treatment time andexpense. The clinical outcome of this treatment is significantly better than that achieved with conventionalmandibular dentures, especially when patients are experiencing technical problems because of compromisedprosthesis retention and stability.

Evaluation of Implant Overdenture Retention with Two Different Attachments at 23mm Standard Inter-Implant Distance

Purpose: Evaluation of implant overdenture retention at 23mm standard inter-implant distance using OT Equator and locator attachments. Materials and methods: Twelve completely edentulous patients were selected for this study. For all patients, conventional complete dentures were constructed. Mandibular dentures were replicated into stereolithographic implant placement guide using CBCT. Every participant received 2-implants in the anterior mandibular area with inter-implant distance of 23 mm. After the osseointegration period, the mandibular conventional dentures were converted into implant retained overdentures attached with Locator attachment for (group I) (six patients) and OT Equator attachments for (group II) (six patients). Retention was evaluated for conventional mandibular complete dentures (T0), 3-months (T3) and, 6-months (T6) after overdenture insertion using digital force-meter. Results: Results revealed that there was a statistically significant difference between the study groups representing mean retention force (P&lt;0.05) except at T0 (baseline evaluation with conventional dentures) with higher mean values for group I (Locator attachment) than group II (OT Equator attachment). Conclusion: Regarding the limitations of this study: -Inter-implant distance of 23 mm for 2-implant overdentures could be considered a reliable modality for edentulous mandible. -Locator attachment may be preferable than OT Equator attachment regarding 2-implant overdenture retention at 23 mm inter-implant distance.

The effects of silicone-based resilient denture liners on pain: A randomized controlled trial

PurposeThis randomized controlled trial aimed to study the effects of lining mandibular complete dentures with silicone-based resilient denture liners, especially with respect to sensation. MethodsThe trial included completely edentulous patients who were willing to fabricate new set of complete denture. A random permuted block method (block size: 4) was used to assign participants to one of the following groups: mandibular conventional denture (CD) group or mandibular denture with resilient denture liner (RD) group. The outcomes were evaluated using both, objective measures (current perception threshold (CPT) and pain threshold (PT)) for external stimuli measured using the Neurometer CPT® and subjective measures (physical pain and psychological discomfort measured using the Japanese version of Oral Health Impact Profile for Edentulous patients—OHIP-EDENT-J). The outcomes were measured twice, at immediately after completion of denture adjustments (first measurement), and 3 months after the completion of denture adjustments (second measurement). All outcomes were analyzed using the Student t-test. A p-value of <0.05 was considered statistically significant. ResultsCPT was significantly higher with RD than CD only at second measurement with frequency level of 2000 Hz and 5 Hz. The pain thresholds were significantly higher in the RD group than the CD group. The physical pain and psychological discomfort scores were significantly lower in the RD group than in the CD group. ConclusionThis study concludes that edentulous patients wearing mandibular complete dentures with silicone-based resilient denture liners dull perception mandibular ridge mucosa and felt less pain than those without the liners.

Effect of Low-Level Laser Irradiation on Stability and Marginal Bone of Narrow Implants Retaining Overdentures in Moderately Controlled Diabetic Patients.

The researchers investigated the influence of low-level laser irradiation (LLLI) on implant stability and marginal bone of small-diameter implants retaining mandibular overdentures in patients with moderately controlled diabetes. Twenty patients (mean age = 59.32 ± 4.1 years) with moderately controlled diabetes mellitus (glycated hemoglobin A1c [HbA1c] = 8.1%-10.0 %) were rehabilitated by maxillary and mandibular conventional dentures. Two small-diameter implants (3 × 12 mm) were inserted in the canine areas of the mandible and immediately loaded by mandibular dentures. In a split-mouth design, LLLI was applied to 1 of the 2 implants in a random order (study group [SG]); the other implant was left as a control (control group [CG]). For each patient, gallium aluminum-arsenide diode low-level laser (940-nm wavelength, 0.50 ± 2 mW output power, 0.004 cm2 spot size; Epic, Biolase, Inc, San Clemente, Calif) was applied around each implant with total delivered energy of 90 J (equally divided by 6 irradiation points) in 3 sessions. The application was done immediately after implant insertion, 3 days and 1 week after surgery. Implant stability (measured by Periotest) and marginal bone loss (MBL; measured by cone beam computerized tomography) were evaluated at implant loading (T1), 6 months (T6), and 12 months (T12). One implant failed in the CG and no failures occurred in the SG, resulting in 95% and 100% survival rates, respectively. The SG recorded higher Periotest values than the CG at all observation times. However, the difference was significant (P = .039) at T6 only. The SG recorded lower MBL values than the CG. No difference in MBL was detected between groups or peri-implant sites (mesial, distal, buccal, and lingual) at T6 and T12. Within the limits of this study, LLLI had no effect on marginal bone around immediately loaded small-diameter implants retaining overdentures in patients with moderately controlled diabetes. However, it was beneficial in improving implant stability 6 months after overdenture insertion.

Evaluation of the clinical efficacy of implant-supported overdenture with edentulous mandible in elderly patients

The aging society of the global population has led to an increase in the number of patients with edentulous jaw, a common multiple disease. Given the developments in implant techniques, the method of implant denture has received a positive and good response in terms of the quality of life and psychological well-being of patients. Implant-supported overdenture in mandible has two main advantages. 1) It has better retention and chewing efficiency than those of mandibular conventional denture. The required implant site of implant-supported overdenture is less than that of fixed implant-supported denture and can repair more defect tissues to help restore beauty and pronunciation. The price of the former is more acceptable than that of the latter. Therefore, this article aimed to systemically analyze and further discuss the clinical effect of implant-supported overdenture in elderly patients; combine existing related studies on the selection of number, site, and upper restoration of implants; and illustrate the advantages of removable implant-supported protheses in the repair of toothless mandible.

Prosthetic Rehabilitation of an Edentulous Patient with Microstomia Using Both Digital and Conventional Techniques: A Clinical Report.

This clinical report describes prosthetic rehabilitation applied to an edentulous patient with microstomia. Intraoral scanning was used for preliminary impressions, edentulous models were printed using a 3D printer, custom 2-piece impression trays for definitive impressions were made, and a 2-piece collapsible maxillary and a conventional mandibular denture were fabricated. Intraoral scanning is a useful alternative to conventional impression techniques and can be used safely in patients with microstomia for preliminary impressions.

Factors associated with the non-wear of mandibular dentures in the Brazilian public primary health care.

This study investigated factors that affect the use of complete conventional mandibular dentures (CCMD) by patients of the Brazilian Public Health Service. For this, two hundred and thirty one subjects who received CCMD in the Primary Health Care of the Public Health Service in Belo Horizonte - Brazil were evaluated and divided in Group 1 - irregular/non-wear; Group 2 - regular wear. Multivariate logistic regression analysis was used to create predictive models for CCMD non-wear and included socio-demographic and biological variables, technical quality of CCMD, and user satisfaction. The prevalence of CCMD non-wear was 41.10%. The mean score of CCMD quality was 54.97 (0-100). Not wearing the CCMD was significantly associated with user satisfaction and technical quality (p < 0.05). The lack of retention of the CCMD was the most important factor in the evaluation of satisfaction and quality. The final predictive model (specificity = 92.65%; AROC = 0.8759) for not wearing the CCMD retained the variables CCMD stability (OR = 0.888; 95%CI = 0.827-0.954), freeway space (OR = 0.916; 95%CI = 0.860-0.976), satisfaction with speech (OR = 0.694; 95%CI = 0.612-0.786), and irregular CCMD edges (OR = 3.185; 95%CI = 1.478-6.864). Socio-demographic and biological variables were not associated with patients not wearing the CCMD, whereas technical quality and user satisfaction were strongly associated.

CHEWING EFFICIENCY WITH DIFFERENT TYPES OF BAR JOINT USED TO RETAIN MANDIBULAR IMPLANT OVERDENTURES. A CROSS OVER STUDY

Objectiv: This article aimed to evaluate, within patient, the chewing efficiency with different types of bar joint used to retain mandibular implant overdentures . Materials and methods: ten (5 males and 5 females) completely edentulous patients (mean age is 59 years old) received maxillary and mandibular conventional dentures (control group, GI). After, 3 months of adaptation, 2 implants were inserted in the mandibular canine areas. In a quasi-random method, implants were connected with either Dolder (group II, GII) or Hader (Group III, GIII) bars and patient received mandibular implant overdentues. Chewing efficiency was measured using a 2-colored chewing gum after 5, 10, 20, 30 and 50 chewing cycles. Measurements were made 3 months after wearing the following prostheses; new conventional dentures, Dolder bar/ implant retained overdentures and Hader bar/implant retained overdentures. Results: Regardless the number of chewing strokes, GI recorded the highest UF and GIII recorded the lowest UF. GI recorded the significant higher UF compared to GII and GIII. GIII showed significant higher UF than GII. Regardless the group, 5 strokes recorded the highest UF and 50 strokes showed the lowest UF. Conclusion: within limitations of this cross-over study, bar/implant retained overdentures are associated with improved chewing efficiency compared to conventional dentures. Dolder bar used to retain mandibular implant overdentures showed significant increase in chewing efficiency compared to Hader bar.

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.

Masticatory function with ball and resilient telescopic anchors of mandibular implant-retained overdentures: A crossover study.

The masticatory function of implant-retained overdentures with different attachments has not been sufficiently investigated. This study evaluated the masticatory function of implant-retained mandibular overdentures with ball and resilient telescopic attachments. Twelve edentulous participants were rehabilitated with new maxillary and mandibular conventional dentures (CD). Three months later, two implants were installed in the canine regions of the mandible. Following a 3-month healing period, duplicate overdentures were constructed for all patients. In a simple random method, six participants were first given ball-retained overdentures (BOD) and the other six received resilient telescopic-retained overdentures (TOD). After testing these prostheses, the first group received the TOD, while the second group received the BOD. Masticatory functions (chewing efficiency [unmixed fraction, UF] and electromyographic activity [EMG] of masseter muscles) were measured 3 months after wearing each of the following dentures: CD, BOD, and TOD. UF was measured using chewing gum and EMG was recorded for right and left bellies of masseter muscle during clenching with (soft and tough) and without foods. Regardless of attachment type, implant-retained overdentures demonstrated significant decrease in UF and significant increase in EMG compared to CD. TOD recorded significantly lower UF and significantly higher EMG when compared to BOD. The TOD improves masticatory functions when compared to BOD. Such improvement may be related to the increased retention and stability of these dentures.

The Effect of Using Ultra Suction System on Mandibular Complete Denture Retention

Aim of the study: This study was carried out to evaluate the effect of using ultra suction system on mandibular complete denture retention and on the rate of growth of candida albicans. Material and methods: Ten completely edentulous patients participated in this study. Each patient recived two dentures a conventional mandibular denture(D1 denture) constructed using heat cured acrylic resin and an ultra suction retained denture (D2 denture) which was constructed using heat cured acrylic resin with ultra suction system added to it. Patients were left to function with each denture set for a period one week, one month, three months respectivly during which they were recalledto test denture retention and to make microbilogical examination. Retention test was conducted using universal testing machine after pulling the denture from it’s geographic centre. The collected records were recorded, tabulated and statistically analyzed for each denture using the paired t test. Results: The mean retention value for (D1 denture)were 3.66 ±1.07, 3.02±0.82, 4.07± 0.84 , 3.97 ± 0.99 at the baseline and after one week .one month ,three months respectively while for (D2 denture)values were 8.01±2.80 , 8.35± 2.53, 8.72±2.19, 7.11±1.70 at the baseline and after one week .one month ,three months respectively. Statistical analysis of these data revealed a significance increase inthe retention after application of ultra suction system. The mean values for microbilogy test were calculated using Chi square test at the base line and after three months of wearing dentures and after statically analyzing the results, it showed that statistically non-significant difference between conventional (D1) and ultra-suction (D2) denture(P=0.1286>0.05).

Chewing efficiency and maximum bite force with different attachment systems of implant overdentures: a crossover study

This crossover study aimed to evaluate and compare chewing efficiency and maximum bite force (MBF) with resilient telescopic and bar attachment systems of implant overdentures in patients with atrophied mandibles. Ten participants with severely resorbed mandibles and persistent denture problems received new maxillary and mandibular conventional dentures (control, CD). After 3months of adaptation, two implants were inserted in canine region of the mandible. In a quasi-random method, overdentures were connected to the implants with either bar overdentures (BOD) or resilient telescopic overdentures (TOD) attachment systems. Chewing efficiency in terms of unmixed fraction (UF) was measured using chewing gum (after 5, 10, 20, 30 and 50 strokes), and MBF was measured using a bite force transducer. Measurements were performed 3months after using each of the following prostheses: CD, BOD and TOD. Chewing efficiency and MBF increased significantly with BOD and TOD compared to CD. As the number of chewing cycles increased, the UF decreased. TOD recorded significant higher chewing efficiency and MBF than BOD. Resilient telescopic attachments are associated with increased chewing efficiency and MBF compared bar attachments when used to retain overdentures to the implants in patients with atrophied mandibles.

Multicentre prospective evaluation of implant-assisted mandibular removable partial dentures: surgical and prosthodontic outcomes.

To determine implant survival and prosthodontic maintenance of implant-assisted mandibular removable partial dentures in a multicentre prospective study up to 10years. Forty-eight participants with mandibular distal extension partial dentures were selected. A control group of 12 New Zealand participants had new conventional mandibular partial dentures made. Three test groups of 36 participants in New Zealand (n=12), the Netherlands (n=12) and Colombia (n=12) had bilateral distal implants placed. Surgical and prosthodontic outcomes were documented with only healing caps placed (Stage 1) and with an attachment system (Stage 2). No implants failed after 3years. Four late implant failures in three participants occurred in New Zealand (two unilateral implant failures after 5 and 8years and two bilateral implant failures in the same participant after 6 and 10years); two unilateral late implant failures occurred in the Netherlands and no late failures in Colombia. Implant survival rate was 92% by 10years. Resonance frequency measurements were taken at surgery implant stability quotient (ISQ) 62.44±7.46; range 40 - 79), baseline (ISQ 63.22±6.17; range 50 - 74) and after 3years (ISQ 66.38±6.77; range 55 - 83). In New Zealand and Colombia, measured crestal bone levels were 2.03±0.71mm and 2.20±0.81mm, respectively, at baseline and 3years. For Stage I, principal prosthodontic maintenance issues were loose healing caps among 10 New Zealand participants, four Colombian participants and one Netherlands participant. For Stage 2, matrix activation and overdenture puncture fractures resulted in 41 events (25 participants) in New Zealand over 10years, whilst over 3years, there were 14 events in nine Colombian participants and six events in five Netherlands participants. This clinical multicentre research complements previous case reports, case series, retrospective and prospective studies on the notion of implant-assisted removable partial dentures for partially edentulous patients. Late implant failures and increased prosthodontic maintenance when an attachment system is used identify the need for further research, including more robust statistical analyses.

Impact of mandibular conventional denture and overdenture on quality of life and masticatory efficiency

The aim of this non-randomized controlled clinical trial was to evaluate the oral health-related quality of life and masticatory efficiency of patients rehabilitated with mandibular two-implant overdentures with immediate loading or conventional dentures. Fifty completely edentulous patients wearing bimaxillary conventional dentures, for at least one year, were recruited. The patients were then assigned to either two treatment groups: mandibular overdentures supported by two implants with bar-clip system and a maxillary conventional denture (n = 25), and new maxillary and mandibular conventional complete dentures (n = 25). Masticatory efficiency and oral health-related quality of life were assessed before and 3 months after denture insertion. The Brazilian version of OHIP-Edent questionnaire was used to assess the oral health-related quality of life. Masticatory efficiency was evaluated with chewing capsules through a colorimetric method. The results revealed fewer oral health-related quality of life problems in patients wearing mandibular two-implant overdentures compared to the conventional dentures group. In addition, the implant overdenture group presented statistically significant improvement in masticatory efficiency (p = 0.001). There was no correlation between masticatory efficiency and OHIP in the implant group (p > 0.05), however a correlation was found in the conventional denture group (p < 0.05). Therefore, these short-term results suggest that mandibular overdenture retained by 2 implants with immediate loading combined with maxillary conventional dentures provide better masticatory efficiency and oral health-related quality of life than mandibular conventional dentures.