How does canal taper affect root stresses?

Rundquist, B. D.; Versluis, Antheunis

doi:10.1111/j.1365-2591.2006.01078.x

Cited by 94 publications

(92 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Endodontically treated teeth are susceptible to fracture because of extensive restorations and reduced amounts of remaining tooth structure (5,6,(22)(23)(24). The strength of an endodontically treated tooth is directly proportional to the amount of remaining sound tooth structure.…”

Section: Primary Monoblocksmentioning

confidence: 99%

Monoblocks in Root Canals: A Hypothetical or a Tangible Goal

Tay

Pashley

2007

Journal of Endodontics

373

314

View full text Add to dashboard Cite

The term "monoblock" has become a familiar term in the endodontic literature with recent interest in the application of dentin adhesive technology to endodontics. Endodontic "monoblocks" have generated controversial discussions among academicians and clinicians as to whether they are able to improve the quality of seal in root fillings and to strengthen roots. This review attempts to provide a broader meaning to the term "monoblock" and see how this definition may be applied to the materials that have been used in the past and present for rehabilitation of the root canal space. The potential of currently available bondable materials to achieve mechanically homogeneous units with root dentin is then discussed in relation to the classical concept in which the term "monoblock" was first employed in restorative dentistry, and subsequently in endodontics.

show abstract

Section: Primary Monoblocksmentioning

confidence: 99%

Monoblocks in Root Canals: A Hypothetical or a Tangible Goal

Tay

Pashley

2007

Journal of Endodontics

373

314

View full text Add to dashboard Cite

show abstract

“…Another important predisposing etiology is the amount of sound tooth structure pretreatment in the crown and root as a result of caries or trauma. Combined with the reduced amount of radicular dentin as a result of the various intracanal procedures (initial root canal therapy, retreatment, postspace preparation), sound tooth structure is directly correlated to the ability of the endodontically treated tooth to resist fractures [6,7,[15][16][17][18].…”

Section: Predisposing Etiological Factorsmentioning

confidence: 99%

“…The design of the NiTi instruments is an important factor when evaluating the ability of roots to resist fractures [18,32]. These studies address the correlation of canal preparation to fracture susceptibility.…”

Section: Contributing Etiological Factorsmentioning

confidence: 99%

Etiology of Vertical Root Fractures

Tamse¹,

Chai

2015

Vertical Root Fractures in Dentistry

View full text Add to dashboard Cite

The etiology of vertical root fractures (VRFs) in endodontically treated teeth is complex because of its multifactorial nature. Since there is no single specific etiology that is pathognomonic for this complication that can be identified, prevention of vertical root fractures in endodontically treated teeth is quite difficult. There are predisposing factors as well as contributing ones. The predisposing factors are practically noncontrollable. These include the specific anatomy of the susceptible roots, biochemical changes in the root dentin in the endodontically treated tooth, and loss of healthy tooth substance as a result of caries and trauma before beginning endodontic procedures. The contributing factors are attributed to the iatrogenic risk factors associated with various dental procedures performed on the tooth. These clinical etiologies will be discussed in the first section, and a fracture mechanics perspective will be presented in the second section. This will incorporate geometry, material, and loading issues when a dentinal crack is initiated in the canal wall, which is a precursor for a future complete and incomplete fracture in the root at a later stage.

show abstract

“…The value of the occlusal force was chosen to represent a relatively high biting force 24) . This value has been used in several works dealing with premolars 16,[25][26][27] . Under this load, the stress distribution pattern of the restored tooth was studied for two different post materials.…”

Section: Finite Element Modelmentioning

confidence: 99%

Premolars restored with posts of different materials: fatigue analysis

et al. 2011

View full text Add to dashboard Cite

Previous works studied the effect of the material and the dimensions of the post on the biomechanical performance (fracture strength and stress distribution) of restored teeth, under static loads. The aim of this work was to study the effect of the post material (glass fibre and stainless steel) on restored teeth, which have the final crown, under dynamic conditions. The use of a biomechanical model, including a fatigue analysis from FEA, is presented as a powerful method to study the effect of the material of the intraradicular post. The inclusion of the fatigue analysis allows for a more realistic study that takes into account the dynamic nature of masticatory forces. At the same time, the results obtained are easier to interpret by both dentists and mechanical engineers. No differences were found, with the load and number of cycles considered, between glass fibre and stainless steel as material for the intraradicular post used in premolars restorations.

show abstract

How does canal taper affect root stresses?

Abstract: With increasing taper, root stresses decreased during root filling but tended to increase for masticatory loading. Root fracture originating at the apical third is likely initiated during filling, whilst fracture originating in the cervical portion is likely caused by occlusal loads.

Cited by 94 publications

References 34 publications

Monoblocks in Root Canals: A Hypothetical or a Tangible Goal

Monoblocks in Root Canals: A Hypothetical or a Tangible Goal

Etiology of Vertical Root Fractures

Premolars restored with posts of different materials: fatigue analysis

Contact Info

Product

Resources

About