Effect of the timing of radiation therapy on the push-out strength of resin cement to root dentine

被引：8

作者：

Cancelier, Patricia da Agostim ^{[1
]}

Machado, Renata Gondo ^{[2
]}

Savaris, Julia Menezes ^{[1
]}

Bortoluzzi, Eduardo Antunes ^{[2
,3
]}

Teixeira, Cleonice da Silveira ^{[1
]}

Minamisako, Mariana Comparotto ^{[4
]}

Rodrigues, Paulo Marcelo ^{[4
]}

Netto, Vicente Ribeiro ^{[4
]}

Dutra-Horstmann, Kamile Leonardi ^{[4
]}

Roberti Garcia, Lucas da Fonseca ^{[1
]}

机构：

[1] Univ Fed Santa Catarina, Dept Dent, Endodont Div, Hlth Sci Ctr, Campus Reitor JoAo David Ferreira Lima, BR-88040900 Florianopolis, SC, Brazil

[2] Univ Fed Santa Catarina, Postgrad Program Dent, Florianopolis, SC, Brazil

[3] Univ Louisville, Dept Diag & Oral Hlth, Endodont Div, Louisville, KY 40292 USA

[4] Oncol Res Ctr CEPON, Dept Radiotherapy, Florianopolis, SC, Brazil

来源：

AUSTRALIAN ENDODONTIC JOURNAL | 2023年 / 49卷

关键词：

bond strength; cancer; endodontic treatment; glass fibre post; radiotherapy; resin cement; ADHESIVE SYSTEMS; CANCER-PATIENTS; BOND STRENGTH; RADIOTHERAPY; TEETH; POST; HEAD; OROPHARYNGEAL; IRRADIATION; ENAMEL;

D O I：

10.1111/aej.12699

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

This study investigated the effect of radiation timing on the bond strength of resin cement to intraradicular dentine. Fifty human teeth were distributed into 5 groups (n = 10): Control (nonirradiated teeth), Before-RCT (teeth irradiated before root canal treatment), After-CH (teeth irradiated after canal preparation and placement of calcium hydroxide intracanal dressing), After-RCT (teeth irradiated after completion of root canal treatment) and After-FPL (teeth irradiated after luting of a glass fibre post). Each tooth received 70 Gy irradiation. The roots were sectioned for push-out strength testing. After-RCT and After-FPL groups had significantly lower push-out strength than the control at the middle third (p < 0.05). Control and After-CH groups had a higher percentage of cohesive dentine failure. Radiotherapy after root canal obturation and post luting adversely affected the adhesiveness of resin cement to intraradicular dentine. Teeth irradiated before root canal treatment and after placement of calcium hydroxide had the best performance.

引用

页码：122 / 131

页数：10

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