Screw-and-cement–retained prosthesis versus cement-retained prosthesis: Which is more appropriate for the upper premolar area?

Park, Dong-Uk; Kim, Jun-Yeop; Lee, Jaerim; Kim, Hee-Sun; Sim, Hye-Young; Lee, Ho; Han, Yoon-Sic

doi:10.1016/j.jds.2022.04.011

Cited by 4 publications

(3 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Park et al recommend choosing the appropriate fixation method depending on the implants’ parallelism and considering the occlusal relations. It is crucial in the case of the upper premolar region the possibility to place the access hole of the screw on the central fossa [ 42 ], as it was in our case.…”

Section: Discussionmentioning

confidence: 99%

Full-Mouth Rehabilitation of a Patient with Gummy Smile—Multidisciplinary Approach: Case Report

et al. 2023

View full text Add to dashboard Cite

The impairment of aesthetic function leads to a decreased quality of life. An unaesthetic smile due to excessive gingival exposure demands, most of the time, a complex treatment in which the objective is the vertical reduction of the amount of exposed fixed gingiva by obtaining a complete exposure of the anatomical crown of the teeth and restoring the ideal dimensions of the biological width. This paper presents a case of a 48-year-old female patient who was unsatisfied with her aesthetics and had disturbed masticatory function due to the absence of some posterior teeth. The cone beam computed tomography was performed to evaluate the facial and dental morphology. The treatment plan included diode laser and piezo-surgery utilization for the frontal area of the upper arch and implants to restore the distal area of the lower and upper arch. Zirconia ceramic was used for the final restorations. This complex and multidisciplinary full-mouth rehabilitation lasted for two years, and the patient was pleased with the result. This case showed that a well-established treatment plan is necessary to obtain long-lasting results. The use of adequate procedures and equipment ensures a predictable result.

show abstract

Section: Discussionmentioning

confidence: 99%

Full-Mouth Rehabilitation of a Patient with Gummy Smile—Multidisciplinary Approach: Case Report

et al. 2023

View full text Add to dashboard Cite

show abstract

“…In the maxillary premolar area, the limited width of alveolar ridge restricts the possible angles for implant placement and in uences the design of the prosthesis. Mostly, the restoration design for an implant-supported single crown in clinical practice includes a cement-retained design and a combined cement-and screw -retained design [4]. A cement-retained design provides better occlusal integrity and esthetics because no screw access hole is presented on the occlusal surface.…”

Section: Introductionmentioning

confidence: 99%

“…This restoration design offers predictable retrievability, elimination of residual excess cement through extraoral cementation, passive t, and a tissue-friendly emergence pro le. A loosened screw can be retightened and a fractured crown can be easily removed for repair or replacement [4]. However, the disadvantage of this restoration design is the presence of a screw access hole on the occlusal surface, which might not only affect esthetic appearance but also reduce the strength of the crown.…”

Section: Introductionmentioning

confidence: 99%

Effect of screw access hole on fracture resistance among 3 different implant-supported crown materials after cyclic loading: An in vitro study

Liwwattanakorn,

Kamonkhantikul,

Homsiang

et al. 2024

Preprint

View full text Add to dashboard Cite

Background The presence of screw access hole on the occlusal surface might affect the strength of an implant-supported crown. This study aimed to compare the fracture resistance among 5 mol% yttria-stabilized tetragonal zirconia polycrystal (5Y-TZP), lithium disilicate, and composite resin implant-supported premolar crowns with either a cement-retained or a combined cement- and screw-retained design after cyclic loading. Methods Forty-eight maxillary first premolar crowns and their abutments were attached on dental implants (ø4.0 x 10 mm) embedded in epoxy resin blocks and equally divided into 6 groups (n = 8) based on crown material (5Y-TZP (Z), lithium disilicate (L), and composite resin (C)) and restoration design (a cement-retained design and a combined cement- and screw-retained design). After 500,000 cycles of cyclic loading, the fracture resistance of each specimen was measured using a universal testing machine and analyzed using the Kruskal Wallis H test to compare between crown materials within each restoration design. The Mann-Whitney U test or independent t test was used to compare the restoration designs within each crown material (α = 0.05). Results The fracture loads in the Z groups with a cement-retained and a combined cement-and screw-retained designs (1514±442 N and 1171±204 N) were significantly higher than those in the L group (1077±247 N and 849±116 N) and C group (1066±213 N and 648±190 N). There was no significant difference in fracture loads between the L and C groups in both restoration designs. Within the same crown material, the fracture loads of both restoration designs in the Z group were comparable. In contrast, in the L and C groups, the fracture loads in the cement-retained groups were significantly higher than those in the combined cement- and screw-retained groups. Conclusions Fracture resistance of an implant-supported crown is dependent on the crown material. Z demonstrated the highest fracture resistance, followed by L and C. The presence of a screw access hole did not impact the fracture resistance in Z. In contrast, for both L and C, the fracture resistance decreased with the presence of a screw access hole.

show abstract

Comparison of the accuracy of implant placement using a simple guide device and freehand surgery

Kim,

Lee

et al. 2024

Journal of Dental Sciences

View full text Add to dashboard Cite

Screw-and-cement–retained prosthesis versus cement-retained prosthesis: Which is more appropriate for the upper premolar area?

Cited by 4 publications

References 18 publications

Full-Mouth Rehabilitation of a Patient with Gummy Smile—Multidisciplinary Approach: Case Report

Full-Mouth Rehabilitation of a Patient with Gummy Smile—Multidisciplinary Approach: Case Report

Effect of screw access hole on fracture resistance among 3 different implant-supported crown materials after cyclic loading: An in vitro study

Comparison of the accuracy of implant placement using a simple guide device and freehand surgery

Contact Info

Product

Resources

About