Capping the inflamed pulp under different clinical conditions.
BACKGROUND
A great deal of controversy exists regarding the reliability of capping the inflamed pulp. In particular, the use of calcium hydroxide as a capping agent has come into question. In this study, hard tissue barrier formation after inflamed pulps were capped directly or after partial pulpotomy was compared with calcium hydroxide or bonded resin and with no additional seal or an IRM surface seal. Seventy teeth in five dogs were used. Ten untreated teeth were used as negative controls. In 60 teeth, pulpal inflammation was induced by preparing a cavity close to the pulp and sealing a cotton pellet soaked in plaque in it for 1 to 2 weeks. The cavities were then re-entered and extended to expose the pulps.


METHODS
In half the teeth (n = 30) a partial pulpotomy was performed and in the other half (n = 30) pulpal treatment was performed on the superficial exposed pulp. Both pulpal treatment groups received the same restorative procedures: (1) calcium hydroxide + amalgam + IRM surface seal; (2) OptiBond Solo, Prodigy with IRM surface seal; or (3) OptiBond Solo, Prodigy without IRM surface seal. The presence, absence, and quality of a hard tissue barrier were evaluated histologically.


RESULTS
The calcium hydroxide groups were statistically superior to all other groups. The IRM surface seal resulted in significantly better healing. Although there was no statistically significant difference between direct pulp capping and partial pulpotomy with the numbers in this study, power statistics indicated that in clinical practice a partial pulpotomy would be preferable. CLINICAL SIGNIFICANCE The results of this study suggest that a partial pulpotomy, calcium hydroxide medicament, and a bacteria-tight coronal restoration represent a viable technique for capping the inflamed pulp.
Trope
Martin
M
Department of Endodontics, School of Dentistry, University of North Carolina, Chapel Hill, North Carolina 27599, USA. martin_trope@dentistry.unc.edu
McDougal
Roger
R
Levin
Linda
L
May
Kenneth N
KN
Swift
Edward J
EJ
D000818:Animals; D017438:Bisphenol A-Glycidyl Methacrylate; D002126:Calcium Hydroxide / Q000627:therapeutic use; D003188:Composite Resins; D003723:Dental Amalgam; D001840:Dental Bonding; D003785:Dental Pulp Capping / Q000379:methods*; D003789:Dental Pulp Exposure / Q000628:therapy; D003793:Dental Restoration, Permanent; D017220:Dentin-Bonding Agents; D004285:Dogs; D008689:Methacrylates; D008768:Methylmethacrylates; D008903:Minerals / Q000627:therapeutic use; D011671:Pulpitis / Q000628:therapy*; D011672:Pulpotomy; D019279:Resin Cements; D013223:Statistics as Topic; D015035:Zinc Oxide-Eugenol Cement
D003188:Composite Resins; D017220:Dentin-Bonding Agents; D008689:Methacrylates; D008768:Methylmethacrylates; D008903:Minerals; C428805:OptiBond SOLO; C099128:Prodigy; D019279:Resin Cements; D015035:Zinc Oxide-Eugenol Cement; D017438:Bisphenol A-Glycidyl Methacrylate; C025702:Dycal; C031667:IRM cement; D003723:Dental Amalgam; D002126:Calcium Hydroxide