Evaluation of inter‐implant distance effect on overdenture attachments retention

Baghani, Mohammmad Taghi; Shayegh, Seyed Shojaoddin; Hakimaneh, Seyed Reza; Shidfar, Shireen

doi:10.1111/clr.86_13358

Cited by 2 publications

(2 citation statements)

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“…The least force level needed to displace the implants that were positioned at canine and midline sites, while the highest force was needed to displace implants positioned at second and first premolar sites due to resistance arm enhancement. This was in accordance with other previous studies (Scherer et al, 2014;Taghi Baghani et al, 2018).…”

Section: Discussionsupporting

confidence: 94%

Influence of Ball Attachment Diameter and Inter-implant Distance on Retention of Mandibular Overdenture: An in Vitro Study

Mohamed

Essam

Ragab³

2021

Advanced Dental Journal

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Objectives:To assess the effect of three different diameters of ball/ socket attachments and inter-implant distances (IIDs) on the retention of 2 implants as compared with single implant retained mandibular overdentures. Materials and Methods: Four transparent acrylic resin casts simulating a completely edentulous mandible were fabricated. The forces (N) needed to dislodge single and 2 implant retained mandibular overdentures were estimated by a universal testing machine. Four main groups were computed,12 subgroups; a single implant was placed in mid-line area with 3.5mm, 4mm and 4.5mmdiameter ball and socket attachments respectively and 2 implants with IIDs 25mm in the canine, 32mm in 1st premolar and 40mm in 2nd premolar regions connected to 3.5mm, 4mm and 4.5mm diameter ball/socket attachments respectively. Results: Statistically significant differences were found between single implant with ball attachment diameters(3.5mm,4mmand 4.5mm), single implant at (4.5mm) and 2 implants at (3.5 mm) diameters, 2 implants with ball attachment diameters(3.5mm, 4mm and 4.5 mm) at (25mm and 32mm and 40mm) IIDs and (25mm and 32mm and 40mm) IIDs at (3.5mm and 4 mm)ball attachment diameters, P ≤ 0.05, but it was non-significant at 4.5mm ball attachment diameters, P > 0.05.The interactions between IIDs and the diameter of ball/ socket attachments were statistically non significant, P> 0.05. Conclusion: Increasing both ball and socket attachment diameters and the inter-implant distances had positively influenced the retention of mandibular overdenture.

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Section: Discussionsupporting

confidence: 94%

Influence of Ball Attachment Diameter and Inter-implant Distance on Retention of Mandibular Overdenture: An in Vitro Study

Mohamed

Essam

Ragab³

2021

Advanced Dental Journal

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“…Both are directly related to the used attachment system and clips as the retentive ability of the attachment element are important to function for a long time. [26,27] Choosing the attachment depends on the retention needed, jaw shape, anatomy, the ridge of mucosa, oral function, and patient compliance for recall. [28] There are two materials of sleeve bar/clip as it may be constructed either from metal or plastic types.…”

Section: Mandiblementioning

confidence: 99%

Thermocycling Effect on Implant Supported Overdenture Using 3D printed Peek Bar following all-on-4 Concept: Randomized Trial-In vitro Study

Naggar

Elawady²,

Sayed

et al. 2021

Advanced Dental Journal

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Objective: Stress analysis and retention evaluation of implant-retained mandibular complete overdenture with different clip materials and distributions. Methods: This in-vitro study was conducted over implants retained mandibular complete overdenture (all-on-4 concept) using BIOHPP bar attachments constructed using 3 D printing with different clip materials and distributions. This study consisted of 4 groups according to the type and distribution of clips: Group I: hard clips anteriorly and posteriorly, Group II: soft clips anteriorly and posteriorly, Group III: hard clips anteriorly and soft clips posteriorly, and Group IV: soft clips anteriorly and hard clips posteriorly. Stress analysis and retention were evaluated before and thermocycling afterward. Results: Comparison between stresses in each group before and after thermocycling in central and peripheral implants was performed, revealing stresses in all groups after thermocycling were significantly higher than before thermocycling as P < 0.05. Regarding retention, a comparison between all groups revealed a significant difference between them before and after thermocycling as P<0.05. Conclusion:There is no effect of clip material distribution regarding stress analysis and retention before and after thermocycling except stresses in central implant before thermocycling as soft clips anteriorly and hard clips posteriorly revealed significant lower stresses than hard clips anteriorly and soft clips posteriorly.

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Evaluation of inter‐implant distance effect on overdenture attachments retention

Cited by 2 publications

References 0 publications

Influence of Ball Attachment Diameter and Inter-implant Distance on Retention of Mandibular Overdenture: An in Vitro Study

Influence of Ball Attachment Diameter and Inter-implant Distance on Retention of Mandibular Overdenture: An in Vitro Study

Thermocycling Effect on Implant Supported Overdenture Using 3D printed Peek Bar following all-on-4 Concept: Randomized Trial-In vitro Study

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