The effect of alveolar bone loss on the load capability of restored endodontically treated teeth: A comparative in vitro study

Naumann, Michael; Rosentritt, Martin; Preuß, Anja; Dietrich, Thomas

doi:10.1016/j.jdent.2006.03.003

Cited by 47 publications

(40 citation statements)

References 27 publications

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“…Therefore, higher fracture load values were obtained in this study compared to reports on teeth restored with GFPs but not crowned. Unlike previous studies 22) , there were no differences in fracture pattern among the four groups of specimens. This might be due to high fracture load values and limited number of specimens.…”

Section: Discussioncontrasting

confidence: 94%

“…A recent finite element study seemed to confirm this traditional belief, showing that stress at the cervical region in the periodontal ligament increased with bone height reduction 21) . A study by Naumann et al 22) -which investigated the fracture resistance of extracted maxillary incisors restored with GFPs, all-ceramic crowns, and three different bone levels (no horizontal bone loss, 25% and 50% of horizontal bone loss) -also showed that teeth with a greater bone loss had an increased risk of failure. On the other hand, a study by Komada et al 23) -which investigated the fracture resistance of extracted mandibular premolars restored with different post materials, no crowns, and two different bone levels (2 or 5 mm below CEJ) -found no significant differences in fracture resistance between the two levels of bone loss.…”

Section: Discussionmentioning

confidence: 99%

“…Komada et al 23) and Ni et al 24) found that specimens with bone loss showed more unrestorable root fractures than those with normal bone level. Naumann et al 22) obtained less uniform data, with different fracture types exhibited for different levels of bone loss. In the present study, there were no differences in fracture mode between different post lengths or bone levels: all fractures were unrestorable.…”

Section: Discussionmentioning

confidence: 99%

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Effect of fiber post length and bone level on the fracture resistance of endodontically treated teeth

Mobilio

Borelli

Sorrentino³

et al. 2013

Dent. Mater. J.

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This study evaluated the combined influence of horizontal bone loss and post length on the fracture resistance of endodontically treated teeth (ETT). Twenty premolars were endodontically treated and divided into four groups of two different post insertion depths (5 and 7 mm) and two alveolar bone levels from cement-enamel junction (2 and 5 mm). After posts (RelyX Fiber Post) were cemented using a self-adhesive resin cement (RelyX Unicem Aplicap) and cores were built up (Filtek Supreme XT Universal Restorative, 3M ESPE, USA), cobalt-chrome copings were luted to each prepared tooth. All specimens were subjected to thermocycling and mechanical loading until fracture occurred. Mean fracture loads (N) were 1,445±342.2 (2 mm bone level/5 mm depth), 1,516±413.4 (2 mm bone level/7 mm depth), 1,736.4±1113.8 (5 mm bone level/5 mm depth), 1,038.6±600.2 (5 mm bone level/7 mm depth). No significant differences were found. Therefore, bone level and post length did not seem to influence the fracture resistance of ETT.

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Section: Discussioncontrasting

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of fiber post length and bone level on the fracture resistance of endodontically treated teeth

Mobilio

Borelli

Sorrentino³

et al. 2013

Dent. Mater. J.

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“…The results of the current study were similar to those of an in vitro study by Naumann, et al [17], who found that the load capability reduced significantly with the loss of alveolar bone. In addition, Roscoe, et al [12] discovered that stress concentration significantly increased when bone loss reached 5 mm.…”

Section: Alveolar Bone Levelsupporting

confidence: 91%

Finite element analysis to study the effects of using CAD/CAM glass-fiber post system in a severely damaged anterior tooth

Chen

Feng

Zhang

et al. 2015

BME

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Abstract.To investigate the stress distribution of a severely damaged maxillary anterior tooth restored with a computer-aided design/computer-aided manufacturing (CAD/CAM) glass-fiber post system. Twelve models were fabricated with different alveolar bone levels and cervical dentin wall thicknesses and studied using a two-dimensional finite element method. A force of 100 N was applied to the lingual surface of the crown at 45 degrees, and the maximum von Mises stress was calculated. A higher stress level was observed in the dentin than in the post and crown. With the reduction of dentin thickness, the maximum von Mises stress in the dentin increased slightly to a peak at a thickness of 1.5 mm, followed by a slight decrease at a thickness of 1.0 mm. However, the relative ratio (RR) values did not show a large difference (RR > 80%). Meanwhile, a large difference in RR values was observed with a change in bone level (RR < 80%). When using a CAD/CAM glass-fiber post system, the maximal von Mises stress was significantly affected by the bone level, rather than by the dentin thickness. Moreover, this system may be applied to the treatment of a maxillary anterior tooth with a bone level of only 2/3.

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“…The stress distribution in the dental root is affected because alveolar bone support is lost 16) . Thus, closer attention must be paid to the alveolar bone.…”

Section: Introductionmentioning

confidence: 99%

Photoelastic stress analysis of endodontically treated teeth restored with different post systems: normal and alveolar bone resorption cases

Miura

Okada

et al. 2011

Dent. Mater. J.

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The present study examined the influence of different post materials and their lengths on the mechanical stress of endodontically treated incisor roots in two alveolar bone conditions. Two-dimensional photoelastic models were fabricated to simulate the endodontically treated maxillary central incisors restored with three kinds of posts materials (low Young's modulus glass fiber post, high Young's modulus glass fiber post, and prefabricated stainless steel post) and two post lengths (8 and 4 mm). Completed models were placed in a transmission polariscope and loaded with a static force of 150 N at 45° to the tooth axis. Photoelastic photographs and the magnitudes of fringe order revealed stress distribution in the root, and suggest that the glass fiber post with a low Young's modulus and long length can reduce the stress concentration both in normal and alveolar bone resorption conditions.

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The effect of alveolar bone loss on the load capability of restored endodontically treated teeth: A comparative in vitro study

Cited by 47 publications

References 27 publications

Effect of fiber post length and bone level on the fracture resistance of endodontically treated teeth

Effect of fiber post length and bone level on the fracture resistance of endodontically treated teeth

Finite element analysis to study the effects of using CAD/CAM glass-fiber post system in a severely damaged anterior tooth

Photoelastic stress analysis of endodontically treated teeth restored with different post systems: normal and alveolar bone resorption cases

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