The effect of 2 versus 4 implants on implant stability in mandibular overdentures: A randomized controlled trial

Al-Magaleh, Wafa’a R.; Swelem, Amal A.; Radi, Iman Abd-Elwahab

doi:10.1016/j.prosdent.2016.12.008

Cited by 13 publications

(14 citation statements)

References 43 publications

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“…Furthermore, these prostheses are usually done on elderly patients who have a lesser cognitive and manual capability, which can worsen the hygienic maintenance with the passing of time (Y. Zhang et al, 2019). According to data provided by authors such as Al‐Magaleh et al (2017) they assure that IOD over 4 implants have no statistically significant differences in comparison with structures over 2 implants; so by performing these treatments we facilitate the hygiene without sacrificing quality of life or the satisfaction of those older patients with less manual skill that have difficulties to perform the hygiene of their prostheses.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the quality of life and satisfaction in patients using complete dentures versus mandibular overdentures. Systematic review and meta‐analysis

Egido-Moreno

Ayuso‐Montero

Suárez

et al. 2020

Clinical & Exp Dental Res

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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.

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Section: Discussionmentioning

confidence: 99%

Evaluation of the quality of life and satisfaction in patients using complete dentures versus mandibular overdentures. Systematic review and meta‐analysis

Egido-Moreno

Ayuso‐Montero

Suárez

et al. 2020

Clinical & Exp Dental Res

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“…In the study conducted by Al‐Magaleh, Swelem, and Radi (), implant stability was compared in 20 edentulous patients who had received either two‐ or four‐implant mandibular overdentures (Al‐Magaleh et al, ). The results revealed no significant difference in the clinical outcomes (implant stability) between the two designs.…”

Section: Discussionmentioning

confidence: 99%

A within‐subject clinical trial on the conversion of mandibular two‐implant to three‐implant overdenture: Patient‐centered outcomes and willingness to pay

Emami

Alesawy

Grandmont

et al. 2019

Clinical Oral Implants Res

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Objectives To examine the impact of adding a third midline implant with stud attachment to a mandibular two‐implant overdenture on patient‐oriented outcomes. Methods In this pre–post design clinical trial, following the standard procedures, mandibular two‐implant overdentures of 17 edentulous individuals (61.9 ± 6.6 years) were converted to three‐implant overdentures by adding a stud attachment to an unloaded midline implant. Patient‐oriented outcomes included patient expectations and satisfaction with implant overdenture as well as willingness to pay the cost of conversion. Data were collected at baseline and at the 6‐week follow‐up using visual analog and binary scales as well as open‐ended questions. Statistical analysis included descriptive statistics, Spearman's correlation, Fisher exact test, Mann–Whitney U test, and the exact sign test. Results After connecting the third midline implant to the mandibular two‐implant overdenture, there was a statistically significant decrease in the anteroposterior movement (p = 0.005) as evaluated by clinicians. Moreover, study participants reported an increase in perceived stability of the overdenture (95% CI; 0.68–1.00, p = 0.002) and in their ability to speak (95% CI; 0.63–1.00, p = 0.008). The addition of a third implant met the expectations of 94% of patients in regard to lower denture stability, 100% for retention, and 82.4% for comfort. The mandibular three‐implant overdenture increased patient general satisfaction over a short period of time, but this improvement was not statistically significant. About 80% of patients would recommend this type of prosthesis to their peers but only 47% of them would agree to pay a large increase in the cost of treatment compared to a two‐implant overdenture. Conclusions The addition of a midline third implant to an existing mandibular two‐implant overdenture resulted in several improved patient‐reported outcomes.

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“…Various methods have been used to analyze the transmission of stresses to the underlying bone among them are; photo elastic, strain gauge and finite element analysis. Photo elastic analysis is of low cost, it's a simple method, and it provides a qualitative analysis of the stresses present in the bone but doesn't allow an accurate measurement (8) .…”

Section: Introductionmentioning

confidence: 99%

Stress analysis of two different attachments for a single implant retained mandibular overdentures in the midline (In vitro study)

Hasanin

Alfotouh

Nabi

2021

Egyptian Dental Journal

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Objective: aiming to record the induced micro-strain around one installed implant in the midline of a completely edentulous mandible using strain gauges utilizing an implant retained overdenture with two different types of attachments Ball and CMLOC attachment. Materials and methods: An acrylic resin test resin test model representing a completely edentulous lower arch was used.The distal part of the residual ridge was covered with silicon based soft liner to stimulate the mucopcriostcum. Steps of complete denture fabrication was followed in conventional manner .Duplication of the finished denture was carried out to be used as a surgical stent .A single implant installed in the midline. After the implant was installed in the acrylic resin cast, the ball attachment was screwed to the implant. The denture was prepared for the direct pick up procedure, the same procedure repeated for CM IOC attachment. Four strain gauges around were installed on all surfaces of implant (Buccal. Lingual. Mesial .Distal) to monitor the effect of the applied loads vertical on the two types of attachments. A vertically load applied of 100 N static load was applied by using universal testing machine at two different sites (unilateral left first molar and bilaterally). Results : When the load applied unilaterally on the left side ,it was shown that the single implant retained overdenture with the Ball attachment has shown higher microstrain than the CMLOC ,average microstrain for Ball (391.26) N , and for CMLOC (223.22) N. When the load applied bilaterally, the single implant retained overdenture with the CMLOC (269.05)N attachment has shown higher microstrain than the Ball (106.79) N. Conclosion: It can be concluded from this invitro study that the newly introduced attachment the CMLOC lends to show a better performance with regards to the micro-strains induced around the implants. On the other hand the Ball attachments tends to show more micro-strain around the implants.

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The effect of 2 versus 4 implants on implant stability in mandibular overdentures: A randomized controlled trial

Cited by 13 publications

References 43 publications

Evaluation of the quality of life and satisfaction in patients using complete dentures versus mandibular overdentures. Systematic review and meta‐analysis

Evaluation of the quality of life and satisfaction in patients using complete dentures versus mandibular overdentures. Systematic review and meta‐analysis

A within‐subject clinical trial on the conversion of mandibular two‐implant to three‐implant overdenture: Patient‐centered outcomes and willingness to pay

Stress analysis of two different attachments for a single implant retained mandibular overdentures in the midline (In vitro study)

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