Failure analysis of high performance polymers and new generation cubic zirconia used for implant-supported fixed, cantilevered prostheses.
Failure analysis of high performance polymers and new generation cubic zirconia used for implant-supported fixed, cantilevered prostheses.
复制标题
用于种植体支撑的固定悬臂假体的高性能聚合物和新一代立方氧化锆的失效分析。
DOI：
10.1111/cid.12844
复制
发表时间：
2019
影响因子：
3.6
通讯作者：
R. Seghi
中科院分区：
文献类型：
--
作者：
B. Yılmaz;Burcu Batak;R. Seghi
背景
BACKGROUND
The load-to-failure performance of computer-assisted design and computer-assisted manufacturing (CAD-CAM) high performance polymers (HPP) and new generation cubic zirconia (Zir) material when used with titanium (Ti) bases for implant-supported fixed prostheses with cantilevers is unknown.
PURPOSE
To evaluate the load-to-failure performance of different CAD-CAM fabricated HPP and a new generation cubic Zir in a cantilevered situation when used with Ti bases.
MATERIALS AND METHODS
Five specimens with a Ti base and five specimens without Ti bases were fabricated from seven different CAD-CAM HPPs (100% PEEK [J and CP], 80% PEEK with 20% filler [BRE], 80% PEKK with 20% filler [PK], ceramic reinforced PEEK [ZZ], interlaced fiberglass and resin [TR], fiber-composite material [T]). Five specimens with Ti base and two specimens without Ti base were prepared from a new generation cubic Zir (DD) and a 3Y-TZP Zir (FZR) as the control group (N = 84). All specimens (8 × 7 × 30 mm) were stabilized using a clamp attached to the first 20 mm of each specimen for a 10 mm cantilever. Static loading was applied vertically on the cantilever and the maximum load-to-failure values (N) were analyzed using a two-way ANOVA and t-test (alpha = .05).
RESULTS
HPP and Zir specimens without Ti bases had significantly higher load-to-failure values than Ti based ones in all groups (P < .05). PK with Ti base had significantly lower load-to-failure values than other materials (P < .001). FZR showed significantly higher load-to-failure values than all HPPs and DD (P < .001).
CONCLUSIONS
Load-to-failure values of HPPs and Zir were lower when Ti bases were used. New generation cubic Zir and all HPPs had lower load-to-failure values than FZR. HPPs performance varied among tested materials. PEKK with Ti base had the lowest load-to-failure value.