@article{MTMT:30992962,
	title = {Fracture behavior of root-amputated teeth at different amount of periodontal support - a preliminary in vitro study},
	url = {https://m2.mtmt.hu/api/publication/30992962},
	author = {Szabó, Balázs and Garoushi, Sufyan and Braunitzer, Gábor and Szabó, P. Balázs and Baráth, Zoltán Lajos and Fráter, Márk Tibor},
	doi = {10.1186/s12903-019-0958-3},
	journal-iso = {BMC ORAL HEALTH},
	journal = {BMC ORAL HEALTH},
	volume = {19},
	unique-id = {30992962},
	issn = {1472-6831},
	abstract = {Background The purpose of this study was to evaluate the effect of the amount of periodontal support on the fracture resistance of root-amputated maxillary molar teeth restored with either direct class. I. restorations or class II. mesio-occluso-distal (MOD) indirect overlay restorations with cuspal coverage. Methods Sixty sound maxillary first molars were collected and randomly divided into four groups. In Groups 1 and 2, MOD cavities were prepared and all cusps were reduced by 2 mm, whereas in Group 3 and 4, only a conservative Class I. cavity was prepared. Subsequently, root canal treatment was performed and the mesio-buccal roots were amputated. Groups 1 and 2 were restored with indirect composite overlay, while Groups 3 and 4 received direct composite fillings. After restoration, teeth were embedded as follows: Groups 1 and 3: normal bone level, Groups 2 and 4: furcation involvement. The specimens were submitted to static fracture resistance testing. Fracture thresholds and fracture patterns were measured and evaluated. Results Group 1 had the highest fracture resistance (2311,6 N) among the restored groups and showed statistically significant difference compared to Group 2 (p = 0.038) and Group 4 (p = 0.011). There was no statistically significant difference in terms of fracture resistance between the rest of the groups. In terms of the fracture patterns, Group 3 was characterized by the highest percentage (60%) of mostly favorable fractures, while the rest of the groups showed predominantly unfavorable ones. Conclusions The amount of periodontal support seems to influence the fracture resistance of root-amputated and restored maxillary molars.},
	keywords = {Overlay; Fracture resistance; Furcation; Short fibre-reinforced composite; Bone support},
	year = {2019},
	eissn = {1472-6831},
	orcid-numbers = {Braunitzer, Gábor/0000-0001-8983-5175; Baráth, Zoltán Lajos/0000-0003-0636-6313; Fráter, Márk Tibor/0000-0002-0365-1613}
}