Influence of the lubricant and the alloy on the wear behaviour of attachments

Bayer, Stefan; Keilig, Ludger; Kraus, Dominik; Grüner, Manfred; Stark, Helmut; Mues, Sebastian; Enkling, Norbert

doi:10.1111/j.1741-2358.2009.00352.x

Cited by 29 publications

(44 citation statements)

References 19 publications

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“…This is similar to other in vitro studies using an artificial saliva test environment, but contradictory to the findings of studies using air or water as the testing milieu . This supports the proposition that the presence of a salivary substitute is necessary to attain relevant results from wear studies . Temperature may also be important to Locator wear behavior, because of the low glass transition temperature of the nylon used in the patrix insert…”

Section: Discussionsupporting

confidence: 70%

The Influence of Interimplant Divergence on the Retention Characteristics of Locator Attachments, a Laboratory Study

Stephens

Vitale

O’Sullivan

et al. 2014

Journal of Prosthodontics

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Section: Discussionsupporting

confidence: 70%

The Influence of Interimplant Divergence on the Retention Characteristics of Locator Attachments, a Laboratory Study

Stephens

Vitale

O’Sullivan

et al. 2014

Journal of Prosthodontics

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“…; Bayer et al. ). Also the convergence or divergence of implants might play a role in wear behaviour (Ludwig et al.…”

mentioning

confidence: 96%

Effects of in vitro cyclic dislodging on retentive force and removal torque of three overdenture attachment systems

Kobayashi

Srinivasan

Ammann

et al. 2013

Clinical Oral Implants Res

124

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Within the limits of this in vitro study, it can be concluded that the investigated overdenture attachment systems are sufficiently resistant to wear. However, the Dalbo(®) -Plus- and SFI(®) -Bar- exhibit higher retentive capacities than the Locator(®) -attachment over time. The fixation screw of the SFI(®) -Bar may loosen during long-term use, but these observations might be less important if 1-year recall intervals are respected. An angulation of up to 12° between implants does not seem to have a significant effect on attachment wear.

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“…A possible explanation for the faster degradation of the LAs in the oral environment observed in our study is the exposure to moisture (from saliva), which was shown to cause physical and/or chemical changes, such as increase in creep, flexibility, and stress relaxation, and reduction in stiffness, tensile strength, flexural strength, corrosion, and microcracking of the nylon components in previous investigations . In addition, in vitro studies have shown that hypochlorite‐based denture cleansers have a strong detrimental effect on the LAs nylon inserts, and may also interfere with the retentive properties of ball attachments . Although, we did not monitor the use of cleansers in this study, the nylon inserts are expected to need replacement more frequently than metallic ball attachments due to the faster loss of retention observed.…”

Section: Discussionmentioning

confidence: 50%

Patient satisfaction versus retention of implant overdentures with two attachment systems: A randomized trial

Albuquerque

Fromentin

Lassauzay

et al. 2018

Clin Implant Dent Rel Res

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Background Clinical success with mandibular implant overdentures is highly dependent on a reliable attachment system connecting prosthesis and implants. Purpose To compare the levels of retention and patient‐based outcomes on implant overdentures retained/supported by cylindrical (LA) and ball (RA) attachment systems overtime and investigate their relationship. Materials and Methods Attachment retention (Newtons), and patient satisfaction with the treatment, prosthesis stability, and ability to chew (VAS, 100 mm) were assessed in a crossover trial for both attachment systems at baseline, 1 week, 3, 6, and 12 months and compared to preintervention values. Patients' preference was also recorded. Results Mean retention of worn attachments and patient satisfaction with denture retention assessed in the preintervention phase were 3.2 N (SD 4.9) and 23.5 mm (IQR 6.5‐65.5), respectively. Overall mean retention along the study was higher for RA than LA (difference of 5.0 N, 95%CI: 2.5‐7.6; P = 0.0005), declining significantly overtime (P < 0.0001), more steeply for the cylindrical attachment. Differences in VAS ratings between attachments were nonsignificant in the crossover phase (P > 0.05), but general satisfaction, satisfaction with retention, and comfort were significantly higher when compared with preintervention scores (P < 0.05). Ratings of retention decreased significantly overtime for both systems and earlier for LA than RA. Satisfaction was lower when retention was either too low or too high, although there was large variation in this association. At the end of the study, all participants chose to remain with the attachment system that they had received last. Conclusions Attachment selection should be based on patients' individual characteristics and expectations as satisfaction with the attachment retention and denture stability vary largely among patients.

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Influence of the lubricant and the alloy on the wear behaviour of attachments

Cited by 29 publications

References 19 publications

The Influence of Interimplant Divergence on the Retention Characteristics of Locator Attachments, a Laboratory Study

The Influence of Interimplant Divergence on the Retention Characteristics of Locator Attachments, a Laboratory Study

Effects of in vitro cyclic dislodging on retentive force and removal torque of three overdenture attachment systems

Patient satisfaction versus retention of implant overdentures with two attachment systems: A randomized trial

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