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A Randomized Controlled Trial of Endodontically Treated and Restored Premolars
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نویسنده
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ferrari m. ,vichi a. ,fadda g.m. ,cagidiaco m.c. ,tay f.r. ,breschi l. ,polimeni a. ,goracci c.
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منبع
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journal of dental research - 2012 - دوره : 91 - شماره : 7_suppl - صفحه:S72 -S78
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چکیده
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This in vivo study examined the contribution of remaining coronal dentin and placement of a prefabricated (lp) or customized fiber post (es) to the six-year survival of endodontically treated premolars. a sample of 345 patients provided 6 groups of 60 premolars each in need of endodontic treatment. groups were classified according to the number of remaining coronal walls before abutment build-up. within each group,teeth were allocated to one of three subgroups: (a) no post retention; (b) lp; or (c) es (n = 20). all teeth were protected with a crown. cox regression analysis revealed that fiber post retention significantly improved tooth survival (p < 0.001). failure risk was lower in teeth restored with prefabricated (p = 0.001) than with customized posts (p = 0.009). teeth with one (p = 0.004),two (p < 0.001),and three coronal walls (p < 0.001) had significantly lower failure risks than those without ferrule. similar failure risks existed for teeth without coronal walls,regardless of the presence/absence of ferrule (p = 0.151). regardless of the restorative procedure,the preservation of at least one coronal wall significantly reduced failure risk (clinicaltrials.gov number ct01532947). © 2012,international & american associations for dental research. all rights reserved.
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کلیدواژه
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clinical trial; failure risk; ferrule; fiber posts; luting; restorations
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آدرس
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department of dental materials and fixed prosthodontics,university of siena,tuscan school of dental medicine,university of firenze and siena,policlinico ‘le scotte’,viale bracci,siena 53100, Italy, department of dental materials and fixed prosthodontics,university of siena,tuscan school of dental medicine,university of firenze and siena,policlinico ‘le scotte’,viale bracci,siena 53100, Italy, department of dental materials and fixed prosthodontics,university of siena,tuscan school of dental medicine,university of firenze and siena,policlinico ‘le scotte’,viale bracci,siena 53100, Italy, department of dental materials and fixed prosthodontics,university of siena,tuscan school of dental medicine,university of firenze and siena,policlinico ‘le scotte’,viale bracci,siena 53100, Italy, department of endodontics,college of dentistry,georgia health sciences university,1120 15th street,augusta,ga, United States, department of medical sciences,university of trieste,piazza,ospedale 1,trieste 34129, Italy, department of oral sciences,‘sapienza’,university of rome,viale regina elena 287/a,roma, Italy, department of dental materials and fixed prosthodontics,university of siena,tuscan school of dental medicine,university of firenze and siena,policlinico ‘le scotte’,viale bracci,siena 53100, Italy
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Authors
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