Effect of pulp protection technique on the clinical performance of amalgam restorations: three-year results.
This study evaluated the influence of the pulp protection technique on clinical performance of amalgam restorations after three years, with particular reference to post-operative sensitivity and secondary caries. One hundred and twenty (120) Class II amalgam restorations (68 premolars, 52 molars; 78 MOD, 42 OD/MO) were placed in 30 participants (four restorations per participant). The restorations were divided into four groups according to the pulp protection technique used: copal varnish; 2% neutral sodium fluoride; adhesive resin and no pulp protection. The parameters evaluated were post-operative sensitivity, staining of the dental structure, tooth vitality, partial or total loss of the restoration and secondary caries. One hundred and eight (108) restorations were available for evaluation after three years. No partial or total loss of restorations had occurred; all teeth were vital, no tooth structure staining or secondary caries was detected in any of the restored teeth. Post-operative sensitivity was observed only in two restorations at baseline and at seven-days. The three-year clinical performance of teeth restored with a high copper dispersed phase amalgam was not affected by the choice of pulp protection technique.
Baratieri
Luiz Narciso
LN
Department of Operative Dentistry, Universidade Federal de Santa Catarina, Florianópolis, Brazil. lbaratieri@hotmail.com
Machado
Adriana
A
Van Noort
Richard
R
Ritter
André V
AV
Baratieri
Naira Maria Mascarenhas
NM
D000293:Adolescent; D000328:Adult; D001641:Bicuspid; D002327:Cariostatic Agents / Q000627:therapeutic use; D003300:Copper / Q000737:chemistry; D003722:Dental Alloys / Q000737:chemistry; D003723:Dental Amalgam / Q000737:chemistry; D003731:Dental Caries / Q000209:etiology / Q000517:prevention & control; D003736:Dental Cavity Lining / Q000379:methods*; D003764:Dental Materials / Q000627:therapeutic use; D003782:Dental Pulp / Q000502:physiology; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000145:classification; D003807:Dentin Sensitivity / Q000209:etiology / Q000517:prevention & control; D017220:Dentin-Bonding Agents / Q000627:therapeutic use; D005500:Follow-Up Studies; D006801:Humans; D007764:Lacquer; D008689:Methacrylates / Q000627:therapeutic use; D008963:Molar; D015588:Observer Variation; D023861:Photography, Dental; D012008:Recurrence; D012116:Resins, Plant; D012969:Sodium Fluoride / Q000627:therapeutic use; D013223:Statistics as Topic; D018709:Statistics, Nonparametric; D014075:Tooth Discoloration / Q000209:etiology; D016896:Treatment Outcome
D002327:Cariostatic Agents; D003722:Dental Alloys; D003764:Dental Materials; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D012116:Resins, Plant; C100742:All-Bond 2; C023806:Copalite; D003300:Copper; D003723:Dental Amalgam; D012969:Sodium Fluoride