Randomized study on the effect of single-implant versus two-implant retained overdentures on implant loss and muscle activity: a 12-month follow-up report

Alqutaibi, Ahmed Yaseen; Kaddah, Amal; Farouk, Mohamed

doi:10.1016/j.ijom.2017.02.001

Cited by 34 publications

(72 citation statements)

References 20 publications

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“…In this preliminary study, conventionally loaded 1-IODs with a locator attachment had a high survival rate, good stability, and acceptable marginal bone loss, as indicated by both types of evaluation. Previous studies using conventional loading reported survival rates of 100% [13,24] and 98.5% [25]; however, in this study, one implant was lost during the healing period; thus, the survival rate was 95.5%. Analysis of implant stability showed a slight decrease in ISQ, although median ISQ remained greater than 80 during the study period.…”

Section: Discussioncontrasting

confidence: 64%

“…However, use of an appropriate insert prevented the decrease in retention in patients with angulated implants [9,10]. Locator attachments are now frequently used with 1-IODs [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…Implant survival rate, implant stability, marginal bone loss, and complications must be considered when evaluating the suitability of a locator attachment for a 1-IOD. Implant survival rates were reported to be 100% for conventional and immediate loading on a locator-retained 1-IOD [11,13]. Implant stability can be measured by resonance frequency analysis and expressed as the implant stability quotient (ISQ).…”

Section: Introductionmentioning

confidence: 99%

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Preliminary study of clinical outcomes for single implant-retained mandibular overdentures

et al. 2020

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This study evaluated marginal bone loss and prosthetic complications associated with single implant-retained mandibular overdentures (1-IODs) with locator attachments. The 1-IOD was placed in the mandibular midline by using a conventional loading protocol in 22 patients with an edentulous mandible. Marginal bone loss at the start of loading and 12 months postoperatively was assessed by radiographic and crestal bone evaluation. The crestal bone was defined as the distance between the customized abutment shoulder and the top of the bone, as indicated by probing. In addition, implant stability quotient and prosthetic complications were recorded. The cumulative implant survival rate was 95.5%. Median implant stability quotient remained greater than 80, and median radiographic bone loss was 0.56 mm. Crestal measurement showed a median crestal bone loss of 0.16, 0.43, 0.39, and 0.52 mm on the buccal, right, lingual, and left sides, respectively. Both radiographic and crestal bone loss values significantly differed between the start of implant loading and 12 months postoperatively (except on the buccal and lingual sides; P < 0.05). The need to replace the nylon insert was the most common complication. Conventional loading of a 1-IOD with a locator attachment resulted in a high survival rate, good implant stability, and acceptable marginal bone loss. Materials and Methods Study designTwenty-two patients (10 men, 12 women; age range 61-91 years) with an edentulous mandible were recruited at the Dental Hospital of Tokyo Medical and Dental University from October 2015 through March 2016. The study inclusion criteria were presence of an edentulous mandible for at least 6 months; sufficient bone height (≥13 mm) and width (≥6.1 mm) at the mandible midline; written and spoken Japanese skills adequate to respond to questionnaires; and age older than 50 years. Patients were excluded if they had a medical contraindication to implant surgery, were receiving bisphosphonate therapy at the time of the study, had a history of chemotherapy or radiation therapy to the head or neck, smoked >20 cigarettes a day, or had an infection, a psychiatric disorder, a temporomandibular disorder, dry mouth, or oral dyskinesia.The sample size required for this study was estimated by using 100-mm Visual Analog Scale (VAS) scores for patient satisfaction, as described in the trial protocol of Kanazawa et al. [23]. Twenty participants were required for 80% power with a 2-sided alpha level of 0.05, when VAS scores were assumed to be normally distributed. Twenty-two participants were recruited, to allow for dropouts. The study protocol was approved by the

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Section: Discussioncontrasting

confidence: 64%

“…However, use of an appropriate insert prevented the decrease in retention in patients with angulated implants [9,10]. Locator attachments are now frequently used with 1-IODs [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preliminary study of clinical outcomes for single implant-retained mandibular overdentures

et al. 2020

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“…Hence, implant-supported overdentures provide a sufficient number of dental contacts which provide a stable reference for the contraction of the masticatory muscles during static "clenching" and dynamic "chewing soft and hard food" activities. [13,14] The results of the present study showed that the masseter muscle employs higher muscle activity when compared to the temporalis muscle. These findings may be attributed to the greater influence and the greater efforts exerted by the masseter muscle on the denture during chewing than the temporalis muscle.…”

Section: Discussionmentioning

confidence: 48%

Evaluation of mini-implant-retained overdentures on the electromyographic activity and patients’ satisfaction in completely edentulous patients (randomized clinical trial)

Abdelaal¹,

Metwally²

2017

IDJAR

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Background: With the advance of the dental implants, the retention and stability of mandibular complete denture have been improved to a large extent. The implants could be placed interforaminally or in anterior and posterior ridge areas. The placements of the implant in the molar area increase denture support that reflects on improvement in patient mastication and muscles activity. Aim: This study was conducted to evaluate the effect of the distribution of the miniimplants (MIs) on electromyographic (EMG) activity of masticatory muscles and overall patient satisfaction. Materials and Methods: Ten completely edentulous male patients with severely resorbed mandibular ridge were enrolled in this study. Patients were randomly divided into two equal groups. Group (I and II) according to the MIs and distribution pattern. Group (I): Five patients had received four mini-dental implants in interforaminal area. Group (II): Five patients had received four mini-dental implants (two implants in the interforaminal area and two implants in the molar areas). All patients had received implant overdentures. Overdentures were connected to the MIs with O-ring attachments. For each patient, the EMG activity of masticatory muscles and a survey of therapeutic satisfaction before and after connection to the MIs was evaluated. Results: The MI-retained overdentures of the Group II in which the implants placed in the interforaminal area and molar areas showed significant lower EMG values than Group I with soft and hard foods as well as clenching. Conclusions: The distribution of MIs plays a role in the muscle activity, and the placement of implants in the molar area improves the muscle activity and patient satisfaction. Clinical Significance: The placement of MIs to retain mandibular complete denture improves muscles activity and patient satisfaction, particularly, if placed in both anterior and molars areas.

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“…[2][3][4] In implants-supported overdenture, the implants primary stability has been acknowledged as the essential criterion for the success of osseointegration and consequently the prosthodontic implant therapy. [5,6] Attachment of implants to bone is said to be rigid, but still, a displacement is permitted in vertical direction and lateral direction. This displacement, causing microtrauma in bone, is counteracted continuously by bone reparative and remodeling capacities.…”

Section: Introductionmentioning

confidence: 99%

Randomized study on effect of conventional versus Schlosser's fabrication techniques for complete over dentures supported by mandibular implants

Abdelaal¹

2017

IDJAR

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Background:The conventional method of complete denture fabrication has many problems that include lack of uniform distribution of occlusal forces to the basal seat, causing inflammation, ulcers in the supporting tissues, more rapid residual ridge resorption, increase patient discomfort, increase parafunctional movements, and the need for frequent adjustments. Aim: The aim of this study is to evaluate and compare the effect of two different fabrication techniques for complete over dentures supported by mandibular implants. Methodology: A total of 24 edentulous subjects were eligible for inclusion. Using a random sampling system, conventional or Schlosser's technique was used to fabricate the dentures. Two implants were placed in the canine area of all patients. After 3 months, ball attachments were connected to the implants, and the denture delivered with the retentive components incorporated in the denture base. At the follow-up examinations, implant stability and marginal bone loss were evaluated at 3, 6, and 12 months. Results: The sample of 24 patients, with a mean age of 55.2 years, was included in this study. All patients attended the 12-month follow-up. The complete denture fabricated by Schlosser's technique showed significant more implant stability and less bone loss when compared to conventionally fabricated dentures. Conclusion: The Schlosser's technique is considered as predictable methods of complete denture construction. Consequently, this technique has a positive effect on the implants that supported mandibular overdenture. The more harmonious occlusion result from this technique results in better implant stability and decreases the rate of bone loss around the implants. Clinical Significance: The denture fabricated with Schlosser's technique results in more harmonious occlusion that suggested as one requirement of successful dental implants.

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Randomized study on the effect of single-implant versus two-implant retained overdentures on implant loss and muscle activity: a 12-month follow-up report

Cited by 34 publications

References 20 publications

Preliminary study of clinical outcomes for single implant-retained mandibular overdentures

Preliminary study of clinical outcomes for single implant-retained mandibular overdentures

Evaluation of mini-implant-retained overdentures on the electromyographic activity and patients’ satisfaction in completely edentulous patients (randomized clinical trial)

Randomized study on effect of conventional versus Schlosser's fabrication techniques for complete over dentures supported by mandibular implants

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