11 Jan Calcium Oxide Root Fillings

Abstract:  Calcium oxide, available for decades as a root canal filling material, has been little used in recent years due to its lack of radio-opacity, and an expectation that it would lead to an excess of root fractures.  In this study, four general dentists submitted 79 cases of endodontically treated teeth whose roots were filled with either Biocalex 6/9, or Endocal-10, and rendered adequately radio-opaque with yttrium oxide.  57 teeth were available for follow up at three years.  Criteria for success were comfort, function, radiographic signs of healing. The overall  success rate was 89%.  The percentage of teeth retained in function was 98%; aside from one equivocal case, no teeth were lost to root fractures.  These numbers are indistinguishable from success rates reported for conventional root filling materials.  Conclusion:  Calcium oxide may be considered a safe and viable alternative to other current methods of root obturation.