Survival Rates from Fracture of Endodontically Treated Premolars Restored with Full-coverage Crowns or Direct Resin Composite Restorations: A Retrospective Study

Suksaphar, Warattama; Banomyong, Danuchit; Jirathanyanatt, Titalee; Ngoenwiwatkul, Yaowaluk

doi:10.1016/j.joen.2017.09.013

Cited by 25 publications

(27 citation statements)

References 22 publications

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“…Unrestorable fractures were observed in all specimens, which is similar to the results of Taha and Messer's study . However, a low number of unrestorable fractures was reported in a retrospective clinical study of posterior ETT with resin composite restorations . The difference may be explained by the direction and amount of static loading force used in this study being dissimilar to the dynamic loading force in clinical circumstances.…”

Section: Discussionsupporting

confidence: 86%

“…5 Endodontically treated molars are restored with resin composite as a permanent or intermediate restoration, depending on remaining tooth structure and occlusal loading forces. 6 The bonded restorations are beneficial in reinforcing remaining tooth structure and increase resistance to fracture. 4,7 Traditional resin composite with 2-mm depth of cure must be placed incrementally.…”

Section: Introductionmentioning

confidence: 99%

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Fracture resistance, gap and void formation in root‐filled mandibular molars restored with bulk‐fill resin composites and glass‐ionomer cement base

Thongbai‐on

Chotvorrarak

Banomyong

et al. 2019

J of Invest & Clin Dent

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Aim To evaluate fracture resistance and gap/void presence of root‐filled mandibular molars restored with 2 bulk‐fill and 1 conventional resin composites, with or without a glass‐ionomer cement (GIC) base. Methods Coronal access and mesio‐occlusal (MO) cavities were prepared, then root canal treatment was performed on 30 mol/L. The teeth were randomly divided, according to the cavity volume, into 6 experimental groups (N = 5) and restored with conventional/light‐cured (Ceram‐X), bulk‐fill/light‐cured (SureFil SDR) or bulk‐fill/dual‐cured (Core‐X Flow) with/without a 2‐mm thick GIC base. Gaps and voids (%) were determined using microcomputed tomography. Intact teeth and unrestored teeth were used as negative and positive controls. Fracture load (N) was determined using a universal testing machine. Results No significant difference in fracture resistance or gap/void formation was found among the 3 resin composites. GIC‐base groups revealed significantly lower fracture strength than intact teeth, while fracture strengths of no GIC‐base groups were not significantly different from intact teeth. GIC‐base groups revealed significantly more gaps and voids in the area of the GIC than the resin composite. Conclusion Conventional and bulk‐fill resin composites provided similar fracture resistance and gaps/voids in root‐filled molars with MO cavities. Placing a GIC base decreased fracture resistance and increased gap/void formation.

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Section: Discussionsupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Fracture resistance, gap and void formation in root‐filled mandibular molars restored with bulk‐fill resin composites and glass‐ionomer cement base

Thongbai‐on

Chotvorrarak

Banomyong

et al. 2019

J of Invest & Clin Dent

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“…In various studies, it was found in particular that teeth with temporary restorations, amalgam restorations or glass ionomer cement fillings are at a higher probability of failure regarding fractures or survival (Dammaschke et al, 2013;Lazarski et al, 2001). Further studies also showed that crowns placed on endodontically treated teeth were associated with higher survival rates or higher resistance to fracture than post-endodontic restorations with fillings (Ng, Mann & Gulabivala, 2010;Ng, Mann & Gulabivala, 2011a;Salehrabi & Rotstein, 2004;Suksaphar et al, 2018). On the other hand, it was also shown that teeth with smaller composite restorations up to a maximum of two filled tooth surfaces and two proximal contacts have similar resistance to fracture as crowned teeth in premolars (Suksaphar et al, 2018).…”

Section: Limitations Of the Studymentioning

confidence: 99%

“…Further studies also showed that crowns placed on endodontically treated teeth were associated with higher survival rates or higher resistance to fracture than post-endodontic restorations with fillings (Ng, Mann & Gulabivala, 2010;Ng, Mann & Gulabivala, 2011a;Salehrabi & Rotstein, 2004;Suksaphar et al, 2018). On the other hand, it was also shown that teeth with smaller composite restorations up to a maximum of two filled tooth surfaces and two proximal contacts have similar resistance to fracture as crowned teeth in premolars (Suksaphar et al, 2018). However, the problem that the post-endodontic restoration could not be included in the analysis due to the limitations of the database itself is also known from other endodontic studies with large scale secondary databases (Chen et al, 2007;Lin et al, 2014).…”

Section: Limitations Of the Studymentioning

confidence: 99%

A retrospective assessment of different endodontic treatment protocols

Bartols¹,

Bormann

Werner

et al. 2020

PeerJ

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Background The aim of this study was to assess the clinical impact of non-surgical root canal treatments (NSRCT) performed with different treatment protocols on the probability of tooth survival without untoward events and to identify predictors influencing the outcome. Methods During the period from July 1999 to October 2016, 5,858 patients were identified in which 9,967 NSRCTs were performed. The treatments were followed up and divided into three groups. In Group 1 root canal treatment was performed with hand instruments, in Group 2 with multiple file rotary instruments and passive ultrasonic irrigation (PUI), and Group 3 was treated with Reciproc instruments and PUI. Untoward events were defined as orthograde retreatment, apicoectomy or extraction of the tooth after initial treatment. Weibull regression was used to analyse the data. Results A total of 9,938 cases could be included into the analyses. The results showed 5-years predicted survival rates without untoward events of 73.9% (95% CI [71.7%–76.1%]), 75.1% (95% CI [71.7%–78.0%]) and 78.4% (95% CI [75.1%–81.4%]) for study group 1 (N = 5,580), 2 (N = 1,700) and 3 (N = 2,658), respectively. The differences between Group 1 and 3 were statistically significant (p < 0.006). Higher age of the patient (per year increase) and number of earlier NSRCTs (per unit increase) reduce the survival without untoward events statistically significant (both p < 0.02), while treatment of premolars had a statistically significant lower hazard ratio [0.89 (95% CI [0.79–0.99]; p = 0.030)] compared to treatment of molars and anterior teeth. A higher number of supportive periodontal treatments (per unit increase) improved tooth survival without untoward events highly significant (p < 0.0001). Discussion More recent endodontic treatment protocols involving reciprocating instruments and PUI appear to be associated with higher tooth survival rates without untoward events compared to hand instruments.

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“…The conclusion of the meta-analysis in the systematic review was that among factors significantly associated with an improved survival rate of root-filled teeth, a crown restoration after root canal treatment was the factor with the greatest influence on tooth survival (61). The same results have been reported in more recent studies (65,66).…”

Section: Extractionmentioning

confidence: 58%

Coronal restoration in root-filled and non root-filled teeth : studies on periapical status, tooth survival, subsequent treatments and treatment decisions

Dawson¹

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Survival Rates from Fracture of Endodontically Treated Premolars Restored with Full-coverage Crowns or Direct Resin Composite Restorations: A Retrospective Study

Cited by 25 publications

References 22 publications

Fracture resistance, gap and void formation in root‐filled mandibular molars restored with bulk‐fill resin composites and glass‐ionomer cement base

Fracture resistance, gap and void formation in root‐filled mandibular molars restored with bulk‐fill resin composites and glass‐ionomer cement base

A retrospective assessment of different endodontic treatment protocols

Coronal restoration in root-filled and non root-filled teeth : studies on periapical status, tooth survival, subsequent treatments and treatment decisions

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