Crazing of Tooth Structure Associated with Placement of Pins for Amalgam Restorations

Dilts, Walter E.; Welk, Donald A.; Laswell, Harold R.; George, Lawrence

doi:10.14219/jada.archive.1970.0216

Cited by 50 publications

(9 citation statements)

References 8 publications

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“…This was despite ample coverage in the peer reviewed journals that there is no indication for their continued use and evidence that they carry significant disadvantages producing stresses within the teeth while also weakening restorative materials. 17,18 The use of pins may be a reflection of the system in which practitioners work. Pins were supported previously by NHS regulations in England and Wales and still are in Scotland.…”

Section: Discussionmentioning

confidence: 99%

Decisions about restorative dental treatment among dentists attending a postgraduate continuing professional development course

Maidment

Durey

Ibbetson³

2010

Br Dent J

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Section: Discussionmentioning

confidence: 99%

Decisions about restorative dental treatment among dentists attending a postgraduate continuing professional development course

Maidment

Durey

Ibbetson³

2010

Br Dent J

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“…The use of several selfthreading pins and amalgam pins also increase retention (Summitt et al, 1994). The frequently encountered problems with these types of retentive features are dentinal cracks and improper condensation surrounding the pins (Dilts et al, 1970). The use of any retentive features incorporated into the cavity preparation involves the removal of additional tooth structure.…”

Section: Discussionmentioning

confidence: 99%

Fracture resistance of four different restorations for cuspal replacement

Segura

Riggins

1999

J of Oral Rehabilitation

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The purpose of this study was to compare the fracture resistance of four posterior restorations involving an entire cusp replacement. Four groups were established, each containing eight caries-free mandibular molars, similar in size and anatomic form. A mesio-occlusal preparation including the lingual cusp was prepared on all teeth. Group A were restored with a pin-retained amalgam. Group B were restored with amalgam and a meta adhesive. Group C were restored with a composite resin with a beta-glass quartz insert. Group D were restored with composite resin and a HEMA adhesive. All specimens were mounted in acrylic and stored in artificial saliva for 30 days. Each specimen was loaded in compression at a 90 degrees angle in an Instron testing machine with a crosshead speed of 0.5 cm/min. Results demonstrated the mean (SD) failure loads in kilograms for each group to be: A, 1155 (388); B, 1232 (436); C, 1345 (375); D, 1595 (373). Analysis of variance indicated no significant difference among groups at P<0.05. Although the values for the composite resin restoration with the adhesive were higher than the other restorative techniques.

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“…Since studies have shown that threaded pins are extremely retentive in dentin, 9 this technique is clearly a vast improvement. The wire joins the pins to form a relatively rigid joint.…”

Section: Volume 42 Numbermentioning

confidence: 99%

Provisional Intracoronal Fixation: An Improved Technique

Surber

Duboff

1971

Journal of Periodontology

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ALTHOUGH MOBILE TEETH can be splinted in various ways, the methods fall into two main categories: "permanent" and "provisional." The techniques of permanent splinting are familiar to all, as are many of the provisional methods. [1][2][3][4][5][6][7][8] One of the most widely used provisional types is the intracoronal wire-acrylic splint, or "A-splint." The basic concept is sound, but it has inherent shortcomings. The A-splint uses a wire placed in a prepared trough, which is then restored with acrylic. The net result is a continuous connection of a group of teeth. In essence, however, this is no more than a wire floating in a sea of acrylic, where the wire is a strengthener and together with the acrylic forms a rigid splint. However, it is the acrylic which must supply the needed retention and therefore is subject to early failure. This leads to a situation which is often too provisional.

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Crazing of Tooth Structure Associated with Placement of Pins for Amalgam Restorations

Cited by 50 publications

References 8 publications

Decisions about restorative dental treatment among dentists attending a postgraduate continuing professional development course

Decisions about restorative dental treatment among dentists attending a postgraduate continuing professional development course

Fracture resistance of four different restorations for cuspal replacement

Provisional Intracoronal Fixation: An Improved Technique

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