Effect of different resin luting cements on the marginal fit of lithium disilicate pressed crowns

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15110%2F18%3A73592593" target="_blank" >RIV/61989592:15110/18:73592593 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/18:73592593

Výsledek na webu

<a href="https://reader.elsevier.com/reader/sd/pii/S0022391317305176?token=074363329529DF72A7ED5150745FB7228A23F240A660A6D660F4B5CCE0090DDF5FFD36C59C43170CEC9D2C9C6F940886" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S0022391317305176?token=074363329529DF72A7ED5150745FB7228A23F240A660A6D660F4B5CCE0090DDF5FFD36C59C43170CEC9D2C9C6F940886</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prosdent.2017.08.001" target="_blank" >10.1016/j.prosdent.2017.08.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of different resin luting cements on the marginal fit of lithium disilicate pressed crowns

Popis výsledku v původním jazyce

STATEMENT OF PROBLEM: The vertical marginal discrepancy of restorations can increase upon cementation, and poor marginal fit can lead to cement dissolution, marginal discoloration, microleakage, and secondary caries. The amount of increase is related to the type of luting cement used, but how lithium disilicate pressed crowns are affected by different resin cements is unclear. PURPOSE: The purpose of this in vitro study was to compare the effect of using different resin luting cements on the vertical marginal discrepancy of lithium disilicate pressed crowns. MATERIAL AND METHODS: A total of 18 intact extracted mandibular third molars were disinfected in a solution of 10% formalin for 7 days and were then prepared to receive a ceramic crown. Impressions were made with polyvinyl siloxane and lithium disilicate pressed crowns made and cemented with 1 of 3 resin luting cements. The marginal discrepancy was measured at 4 points on the finishing line of each tooth, with optical microscopy at ×200 magnification before and after cementation. Statistical analysis was done with the Kruskal-Wallis test to compare the median marginal increase among the 3 groups (a=.05). RESULTS: The least amount of marginal increase after cementation was with Harvard PremiumFlow cement, with an average marginal increase of 42 ±11 μm. RelyX Ultimate cement increased the margins by an average 45 ±29 μm. The highest marginal increase was found in the Enamel Plus HRi preheated composite resin group (116 ±47 μm). CONCLUSIONS: The marginal increase of pressed crowns cemented with preheated composite resin (Enamel Plus HRi) exceeded the clinically acceptable range of marginal discrepancy.

Název v anglickém jazyce

Effect of different resin luting cements on the marginal fit of lithium disilicate pressed crowns

Popis výsledku anglicky

STATEMENT OF PROBLEM: The vertical marginal discrepancy of restorations can increase upon cementation, and poor marginal fit can lead to cement dissolution, marginal discoloration, microleakage, and secondary caries. The amount of increase is related to the type of luting cement used, but how lithium disilicate pressed crowns are affected by different resin cements is unclear. PURPOSE: The purpose of this in vitro study was to compare the effect of using different resin luting cements on the vertical marginal discrepancy of lithium disilicate pressed crowns. MATERIAL AND METHODS: A total of 18 intact extracted mandibular third molars were disinfected in a solution of 10% formalin for 7 days and were then prepared to receive a ceramic crown. Impressions were made with polyvinyl siloxane and lithium disilicate pressed crowns made and cemented with 1 of 3 resin luting cements. The marginal discrepancy was measured at 4 points on the finishing line of each tooth, with optical microscopy at ×200 magnification before and after cementation. Statistical analysis was done with the Kruskal-Wallis test to compare the median marginal increase among the 3 groups (a=.05). RESULTS: The least amount of marginal increase after cementation was with Harvard PremiumFlow cement, with an average marginal increase of 42 ±11 μm. RelyX Ultimate cement increased the margins by an average 45 ±29 μm. The highest marginal increase was found in the Enamel Plus HRi preheated composite resin group (116 ±47 μm). CONCLUSIONS: The marginal increase of pressed crowns cemented with preheated composite resin (Enamel Plus HRi) exceeded the clinically acceptable range of marginal discrepancy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30208 - Dentistry, oral surgery and medicine

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF PROSTHETIC DENTISTRY

ISSN

0022-3913

e-ISSN

—

Svazek periodika

119

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

975-980

Kód UT WoS článku

000439254200020

EID výsledku v databázi Scopus

2-s2.0-85033794659