Retention of a telescopic overdenture on customized abutments after the simulation of 1 year in function

Ramadan, Rania; Elsherbeeny, Yasmine; Thabet, Yasmine; Kandil, Bassem S M; Ghali, Rami

doi:10.17219/dmp/127963

Cited by 8 publications

(10 citation statements)

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“…The results also showed that regardless of the material, both groups showed a significant decrease in retentive forces after simulation of 3 months of partial denture use. It has been suggested that any attachment system is subjected to functional loads resulting from the friction between the telescopic copings which lead to lowering the retentive force values [49].…”

Section: Discussionmentioning

confidence: 99%

Effect of Using Different Primary Crown Materials on the Retention of CAD/CAM Telescopic Partial Dentures

Abdallah

Elsaeid

Thabet

2023

Open Access Maced J Med Sci

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AIM: This study compared the effect of using different primary crown materials (zirconia and cobalt-chromium) on the retention of telescopic retained removable partial dentures. MATERIALS AND METHODS: A maxillary Kennedy class I stone model was prepared and scanned. The virtual cast was adjusted to create four abutments at the positions of the canines and the first premolars. Primary crowns were designed and then milled. In Group I, seven primary crowns were milled out of zirconia, and in Group II, seven primary crowns were milled from cobalt-chromium blanks. Cobalt-chromium telescopic partial dentures were milled. The universal testing machine was utilized to apply vertically dislodging static forces. Initial retention values were recorded. Then, the chewing simulator (CS) was used to apply dynamic cyclic loading to each partial denture. And after, 50,000 cycles and 270 attempts of insertion and removal final retention values were recorded. The data were collected and statistically analyzed. RESULTS: A significant decrease in retention in both groups after simulation of 3 months of partial denture function was recorded. It was found that after simulation of 3 months of function Group I (zirconia) recorded a statistically significant higher mean value; (1.935 ± 0.268 N) than Group II; (0.583 ± 0.018 N) as indicated by student t-test (p ≤ 0.0001 < 0.05). CONCLUSION: Zirconia primary crowns attain higher retention values than cobalt-chromium with cobalt-chromium telescopic partial dentures after simulation of 3 months of function.

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Section: Discussionmentioning

confidence: 99%

Effect of Using Different Primary Crown Materials on the Retention of CAD/CAM Telescopic Partial Dentures

Abdallah

Elsaeid

Thabet

2023

Open Access Maced J Med Sci

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“…It is now evident in the literature that the levels of inflammation of the peri implant sulcus, also as a function of the different biological width and therefore of the different implant type, must be maintained and controlled, and to favor this it is necessary that the implant supported prosthesis guarantees excellent marginal closures, cleanable profiles, and does not favor the accumulation of plaque [52][53][54]. The shock absorbance as a feature of this implant material is extremely relevant, and allows for performing an implant rehabilitation, even complete, with interesting mechanical and biological characteristics: It is known that overload cannot directly cause peri-implantitis, but participates as a factor, together with the levels of inflammation that it maintains higher as a stimulus for bone resorption, in the development of implant pathology [20].…”

Section: Discussionmentioning

confidence: 99%

Applications and Clinical Behavior of BioHPP in Prosthetic Dentistry: A Short Review

et al. 2022

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(1) Background: BioHPP® (Bredent, UK) is a partially crystalline poly ether ether ketone (PEEK) that is strengthened using ceramic. PEEK and its various formulations represent a very interesting alternative, and has been in-depth with its literature in recent years; (2) Methods: A PubMed and Scopus search for the term “BioHPP” yielded 73 results and 42 articles which were included in this short review. Considering the scarce literature on the subject, each article was considered in this review; (3) Results: the articles analyzed are very recent, all published in the last 5 years. Their clinical evaluation of BioHPP® highlights many positive aspects, and few articles have highlighted critical issues in its multiple clinical applications; (4) Conclusions: this material is not only extremely interesting for the future, but possesses characteristics suitable for clinical application today, for endocrowns, small adhesive bridges, temporary prostheses and for immediate loads on implant restorations. The excellent aesthetics and the possibility of simple reprocessing of the restorations made with this material invite its clinical application.

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“…The chambers of the chewing simulator were lled with arti cial saliva prepared in the pharmaceutical industry lab, Faculty of Pharmacy, Ain-Shams University according to the formula adopted from Glandosane®; Fresenius Kabi Ltd, Germany [49,50]. Bi-axial cyclic loading of 240000 cycles at room temperature were applied to each model simulating one year of clinical service [49][50][51] (Fig. 12).…”

Section: Aging Proceduresmentioning

confidence: 99%

“…Based on the assumption that under regular conditions, a patient inserts and removes his denture with an average of four cycles/day (after every meal and before sleep time), A total of 1440 insertion/removal cycles were applied for each partial denture corresponding to one year of clinical service. [51][52][53] This was followed by mounting each model with the corresponding partial denture again in the universal testing machine to assess the induced strain at the abutments and the edentulous ridge.…”

Section: Aging Proceduresmentioning

confidence: 99%

Induced Strain of Different Extra-Coronal Attachment Materials in Mandibular Kennedy Class I Metallic Removable Partial Dentures After One Year of Clinical Simulation: An in-Vitro study

Shawky

2023

Preprint

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Background: The strain developed by different extra-coronal attachment materials during loading in aqueous environment as well as the effect of denture insertion and removal cycles is of prime importance. Accordingly, the aim of the current study was to assess the induced strain of different extra-coronal attachment materials in mandibular Kennedy class I metallic removable partial dentures after one year of clinical simulation. Methods: Twelve identical 3D-printed models representing mandibular Kennedy class I with first premolars as principal abutments bilaterally were fabricated having 4 removable dies each; canine and first premolar on which two splinted crowns with three different extra-coronal attachment materials (group A: PEEK/BioHPP, group B: zirconia, group C: metal)were fabricated bilaterally. Each of the 3D-printed models (n=4 for each group) was designed with four strain gauge slots, two on each side: 1mm distal to the first premolar (SG1 &SG3) and 1 cm away from the first one at the edentulous ridge (SG2&SG4). Removable partial dentures were constructed, and strain gauges were used to measure the strain applied both unilaterally and bilaterally by a universal testing machine before and after one year of clinical simulation where, an average of 5 readings were recorded for each model. Clinical simulation was performed through chewing simulator and dentures insertion/removal cycles. Repeated measures ANOVA and Tukey’s post-hoc test were used for data analysis at p < 0.05. Results: PEEK (BioHPP) group revealed the lowest induced strain before and after one year of clinical simulation compared to zirconia and metal groups during both unilateral and bilateral loading with significantly higher induced strain at SG2 & SG4 compared to that induced at SG1 & SG3. Metal group showed the same pattern but with significantly higher values compared to PEEK (BioHPP). For zirconia group after one year of clinical simulation, bilateral loading revealed significant decrease in induced strain at SG1&SG3 with a significant increase at SG2 &SG4. Conclusions: PEEK (BioHPP) is more effective in stress dissipation as an extra-coronal attachment in removable partial dentures compared to zirconia and metal. After one year of clinical simulation.

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Retention of a telescopic overdenture on customized abutments after the simulation of 1 year in function

Cited by 8 publications

References 0 publications

Effect of Using Different Primary Crown Materials on the Retention of CAD/CAM Telescopic Partial Dentures

Effect of Using Different Primary Crown Materials on the Retention of CAD/CAM Telescopic Partial Dentures

Applications and Clinical Behavior of BioHPP in Prosthetic Dentistry: A Short Review

Induced Strain of Different Extra-Coronal Attachment Materials in Mandibular Kennedy Class I Metallic Removable Partial Dentures After One Year of Clinical Simulation: An in-Vitro study

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