Marginal adaptation and fracture resistance of feldspathic and polymer-infiltrated ceramic network CAD/CAM endocrowns for maxillary premolars

Sağlam, Gaye; Cengiz, Seda; Karacaer, Özgül

doi:10.4103/njcp.njcp_231_19

Cited by 9 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The specimen was immersed in 5.25% sodium hypochlorite (NaOCl) for 1 hour. To prevent dryness, it was then kept in normal saline until the endodontic treatment [ 32 ].…”

Section: Methodsmentioning

confidence: 99%

The internal and marginal adaptation of lithium disilicate endocrowns fabricated using intra and extraoral scanners: An in-vitro study

Akhlaghian,

Khaledi,

Mosaddad

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

Objectives The impression technique highly influences the adaptation of ceramic restorations. Not enough information is available to compare the marginal (MF) and internal fit (IF) of endocrowns fabricated with various digitization techniques. Therefore, this in-vitro study aimed to compare the MF and IF of lithium disilicate (LDS) endocrowns fabricated through direct and indirect digital scanning methods. Materials and methods One extracted maxillary molar was used to fabricate endocrowns. The digitization of the model was performed with (G1) direct scanning (n = 10) utilizing an intraoral scanner (IOS), (G2) indirectly scanning the conventional impression taken from the model using the same IOS (n = 10), (G3) indirectly digitalizing the obtained impression using an extraoral scanner (EOS) (n = 10), and (G4) scanning the poured cast using the same EOS (n = 10). The MF and IF of the endocrowns were measured using the replica method and a digital stereomicroscope. The Kruskal-Wallis test was used to analyze data. Results The studied groups differed significantly (p<0.001). G2 (130.31±7.87 μm) and G3 (48.43±19.14 μm) showed the largest and smallest mean vertical marginal gap, respectively. G2 and G3 led to the highest and lowest internal gaps in all regions, respectively. With significant differences among the internal regions (p<0.001), the pulpal area demonstrated the most considerable misfit in all groups. Conclusions Scanning the impression using an extraoral scanner showed smaller marginal and internal gaps.

show abstract

“…The specimen was immersed in 5.25% sodium hypochlorite (NaOCl) for 1 hour. To prevent dryness, it was then kept in normal saline until the endodontic treatment [ 32 ].…”

Section: Methodsmentioning

confidence: 99%

The internal and marginal adaptation of lithium disilicate endocrowns fabricated using intra and extraoral scanners: An in-vitro study

Akhlaghian,

Khaledi,

Mosaddad

et al. 2024

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Marginal bonding areas can be evaluated by different methods. Because it is a nondestructive and repeatable technique, stereomicroscope [ 12 – 18 ] followed by direct digital microscopic [ 19 – 21 ] examination of the marginal area is the most widely used method to measure the endocrown marginal adaption in different bonding areas, while micro-computed topography [ 22 – 25 ], scanning electron microscopy (SEM) [ 26 , 27 ], and other [ 28 ] systems can be used for endocrown marginal gap measurements.…”

Section: Introductionmentioning

confidence: 99%

“…Various ceramic systems are used for endocrown fabrications, such as feldspathic ceramics [ 26 , 27 ], lithium disilicate glass ceramics (LDGC) [ 13 , 15 – 19 , 22 , 23 , 25 ], and different types of zirconia [ 13 , 14 , 21 ], which have high mechanical strength and can be acid-etched. Zirconia and LDGC are considered the best choices owing to their mechanical and aesthetic features, including good anti-abrasion, anti-aging, and anti-corrosion properties, translucency, and biocompatibility with natural teeth.…”

Section: Introductionmentioning

confidence: 99%

“…Conservatism, aesthetics, and minimum clinical and laboratory methods give this system its uniqueness compared with conventional post-and-core and crown procedures [ 12 – 28 ]. Most endocrowns are fabricated by computer-aided-design/computer-aided-manufacturing (CAD/CAM) or heat-press techniques [ 19 , 25 , 26 ] using various ceramic systems, such as LDGC and zirconia-reinforced lithium silicates, which are the most common all-ceramic materials used for endocrown constructions [ 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

“…Defective prostheses milling makes the prostheses unable to seat correctly and can cause an installation with occlusal inconsistency. Moreover, additional milled material around the marginal contacts, microleakage, will result [ 25 , 26 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Comparative Analysis of Marginal Adaptation Values between Lithium Disilicate Glass Ceramics and Zirconia-Reinforced Lithium Silicate Endocrowns: A Systematic Review of In Vitro Studies

Alwadai,

Al Moaleem,

Daghrery

et al. 2023

Med Sci Monit

View full text Add to dashboard Cite

This systematic review aimed to identify and analyze in vitro studies on the marginal adaptation values of computer-aided-design/computer-aided-manufacturing (CAD/CAM) and heat-pressed lithium disilicate glass ceramics and zirconia-reinforced lithium silicates and endocrown restorations. A full literature search was conducted in Web of Science, PubMed/Medline, EMBASE, Scopus, Cochrane Library, Google Scholar, and ProQuest electronic databases. The following keywords: endocrown [(marginal adaption) or (marginal fit) or internal fitting)], endocrown [(molar(s)) or (premolar(s) or (posterior teeth) or (maxillary arch) or (mandibular arch)] and ceramic materials as [(lithium disilicate glass ceramic CAD/CAM) or (zirconia) or (heat-press)] were used. Articles were manually searched utilizing their reference lists. Study selection was restricted or limited to the time of publication but not to the type of tested teeth or ceramic material, endocrown design, system of endocrown construction, abutment scanning, and system of the marginal adaption measurement. A total of 17 in vitro studies published between 2016 and 2023 were included in this systemic review. Less than half of the studies were published during 2023. Most studies used lithium disilicate glass ceramic and zirconia-reinforced lithium silicate all-ceramic materials by CAD/CAM or heat-press systems. Marginal adaptation, or marginal gap, was almost equal in the 2 materials, while it was slightly or marginally higher in the heat-press than in the CAD/CAM system. All-ceramic lithium disilicate glass ceramic and/or zirconia endocrowns fabricated for posterior teeth in both arches using CAD/CAM or heat-press had recorded marginal adaptation values within an acceptable range.

show abstract

Rehabilitation of severely-destructed endodontically treated premolar teeth with novel endocrown system: Biomechanical behavior assessment through 3D finite element and in vitro analyses

Shams

Elsherbini

Elsherbiny

et al. 2022

Journal of the Mechanical Behavior of Biomedical Materials

View full text Add to dashboard Cite

Marginal adaptation and fracture resistance of feldspathic and polymer-infiltrated ceramic network CAD/CAM endocrowns for maxillary premolars

Cited by 9 publications

References 0 publications

The internal and marginal adaptation of lithium disilicate endocrowns fabricated using intra and extraoral scanners: An in-vitro study

The internal and marginal adaptation of lithium disilicate endocrowns fabricated using intra and extraoral scanners: An in-vitro study

A Comparative Analysis of Marginal Adaptation Values between Lithium Disilicate Glass Ceramics and Zirconia-Reinforced Lithium Silicate Endocrowns: A Systematic Review of In Vitro Studies

Rehabilitation of severely-destructed endodontically treated premolar teeth with novel endocrown system: Biomechanical behavior assessment through 3D finite element and in vitro analyses

Contact Info

Product

Resources

About