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  2. Amalgam (dentistry) - Wikipedia

    en.wikipedia.org/wiki/Amalgam_(dentistry)

    Creep or plastic deformation happens when subjected to intra-oral stresses such as chewing or grinding. Creep causes the amalgam to flow and protrudes from the margin of the cavity forming unsupported edges. "Ditch" is formed around the margins of the amalgam restoration after fracture due to amalgam creep at the occlusal margins.

  3. Inlays and onlays - Wikipedia

    en.wikipedia.org/wiki/Inlays_and_onlays

    Sometimes, a tooth is planned to be restored with an intracoronal restoration, but the decay or fracture is so extensive that a direct restoration, such as amalgam or composite, would compromise the structural integrity of the restored tooth or provide substandard opposition to occlusal (i.e., biting) forces. In such situations, an indirect ...

  4. Dental restoration - Wikipedia

    en.wikipedia.org/wiki/Dental_restoration

    This could be due to corrosion which may result in "creep" and "ditching" of the restoration. Creep can be defined as the slow internal stressing and deformation of amalgam under stress. This effect is reduced by incorporating copper into amalgam alloys. Some patients may experience local sensitivity reactions to amalgam.

  5. Dental material - Wikipedia

    en.wikipedia.org/wiki/Dental_material

    Amalgam is a metallic filling material composed from a mixture of mercury (from 43% to 54%) and a powdered alloy made mostly of silver, tin, zinc and copper, commonly called the amalgam alloy. [16] Amalgam does not adhere to tooth structure without the aid of cements or use of techniques which lock in the filling, using the same principles as a ...

  6. Dental composite - Wikipedia

    en.wikipedia.org/wiki/Dental_composite

    Use of composite fillings avoids this risk, unless the procedure also involves removing an existing amalgam filling. A review article found studies indicating that dental work involving mercury may be an occupational hazard with respect to reproductive processes, glioblastoma (brain cancer), renal function changes, allergies and ...

  7. Apicoectomy - Wikipedia

    en.wikipedia.org/wiki/Apicoectomy

    A root end surgery, also known as apicoectomy (apico-+ -ectomy), apicectomy (apic-+ -ectomy), retrograde root canal treatment (c.f. orthograde root canal treatment) or root-end filling, is an endodontic surgical procedure whereby a tooth's root tip is removed and a root end cavity is prepared and filled with a biocompatible material.

  8. Dental cement - Wikipedia

    en.wikipedia.org/wiki/Dental_cement

    However, if insufficient tooth tissue remains after cavity preparation to provide such retentive features, a cement can be utilised to help retain the amalgam in the cavity. Historically, zinc phosphate and polycarboxylate cements were used for this technique; however, since the mid-1980s composite resins have been the material of choice due to ...

  9. Foot deformity - Wikipedia

    en.wikipedia.org/wiki/Foot_deformity

    A foot deformity is a disorder of the foot that can be congenital or acquired. Such deformities can include hammer toe , club foot , flat feet , pes cavus , etc. References