수평 포스트와 이중중합 복합레진으로 수복된 치관-치근 복합파절 치아의 파절 저항성에 관한 연구
Fracture resistance of crown-root fractured teeth repaired with dual-cured composite resin and horizontal posts
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
이 연구의 목적은 이중 중합 복합레진과 수평 포스트를 이용하여 수복한 치관-치근 복합파절 치아의 수직파절 저항성을 알아보기 위한 것이다. 48개의 발치된 사람의 소구치에 실험적으로 치관-치근 복합파절을 일으킨 후 대조군 및 3개의 실험군에 (n=12) 각각 할당하였다. 대조군에서는 치아 파절편을 레진시멘트를 이용하여 접착한 후 근관치료를 시행하고, 근관와동을 이중중합 복합레진을 사용하여 충전하였다. 실험군에서는, 각각의 치아에 근관치료를 시행한 후 레진-포스트 군에서는 근관와동을 수평 포스트 및 이중중합 복합레진을 사용하여 충전하였다. 레진 군에서는 근관와동을 포스트 없이 이중중합 복합레진만 사용하여 수복하였으며 아말감 코어 군에서는 근관와동을 접착 아말감을 사용하여 수복하였다. 이렇게 수복된 치아를 처음과 같은 방법으로 다시 치관-치근 복합파절을 유도하여 이때의 파절 저항성을 기록하고 이 값과 처음 파절을 유도하였을 때의 파절 저항성의 비를 계산하고 각 군별로 차이가 있는 지 검증하기 위해 Kruskal-Wallis test를 시행하였다. 수복된 치아의 파절저항성은 레진-포스트군, 대조군, 레진군, 접착 아말감 순으로 높았으며, 이 실험결과로 볼 때, 치관-치근 복합파절 치아의 수복 시 수평 포스트를 사용하는 것이 재파절 방지를 위해 효과적일 것으로 사료된다.
Abstract
The purpose of this study was to investigate the fracture resistance of crown-root fractured teeth repaired with dual-cured composite resin and horizontal posts. 48 extracted human premolars were assigned to control group and three experimental groups. Complete crown-root fractures were experimentally induced in all control and experimental teeth. In the control group, the teeth (n=12) were bonded with resin cement and endodontically treated. Thereafter, the access cavities were sealed with dual-cured composite resin. In composite resin core - post group (n=12), the teeth were endodontically treated and access cavities were sealed with dual-cured composite resin. In addition, the fractured segments in this group were fixed using horizontal posts. In composite resin core group (n=12), the teeth were endodontically treated and the access cavities were filled with dual-cured composite resin without horizontal posts. In bonded amalgam group (n=12), the teeth were endodontically treated and the access cavities were sealed with bonded amalgam. Experimental complete crown-root fractures were induced again on repaired control and experimental teeth. The ratio of fracture resistance to original fracture resistance was analyzed with Kruskal- Wallis test. The results showed that teeth in control and composite resin core - post group showed significantly higher resistance to re-fracture than those in amalgam core group (p < 0.05). The resistance to refracture was high in the order of composite resin - post group, control group, composite resin group and bonded amalgam group. Within the scope of this study, the use of horizontal post could be beneficial in increasing the fracture resistance of previously fractured teeth.
참고문헌 (31)
- Gher ME, "Clinical survey of fractured teeth", J Am Dent Assoc, 114, pp.174~177 (1987)
- Morfis AS, "Vertical root fractures", Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 69, pp.631~635 (1990)
- 이영근, "근관와동형태에 따른 근관치료된 하악절치의 파절강도", 대한치과보존학회지, 29(6), pp.515~519 (2004), 대한치과보존학회
- 최훈수, "복합 레진으로 수복된 세 가지 첨와형태 와동의 파절 저항성에 관한 연구", 대한치과보존학회지, 33(3), pp.177~183 (2008), 대한치과보존학회
- Jung WY, "A study of the fracture loads on the endodontically treated teeth by restorative techniques", J WonKwang Dent Res Inst, 8, pp.327~337 (1993)
- Talim ST, "Management of coronal fractures of permanent posterior teeth", J Prosthet Dent, 31, pp.172~178 (1974)
- Silvestri AR, "Treatment rationale of fractured posterior teeth", J Am Dent Assoc, 97, pp.806~810 (1978)
- Takatsu T, "Treatment and prognosis of a vertically fractured maxillary molar with widely separated segments: a case report", Quintessence Int, 26, pp.479~484 (1995)
- Mondelli J, "Cross-splinting a weakened tooth with a horizontal pin: a new method", J Prosthet Dent, 57, pp.442~445 (1987)
- Yokoyama K, "Treatment of maxillary molars with vertical fractures", Endod Dent Traumatol, 14, pp.287~289 (1998)
- Trope M, "Multidisciplinary approach to the repair of vertically fractured teeth", J Endod, 18, pp.460~463 (1992)
- Hayashi M, "Short-term evaluation of intentional replantation of vertically fractured roots reconstructed with dentin-bonded resin", J Endod, 28, pp.120~124 (2002)
- Hayashi M, "Prognosis of intentional replantation of vertically fractured roots reconstructed with dentin-bonded resin", J Endod, 30, pp.145~148 (2004)
- Kudou Y, "Replantation with intentional rotation of a complete vertically fractured root using adhesive resin cement", Dent Traumatol, 19, pp.115~117 (2003)
- Kawai K, "Vertical root fracture treated by bonding fragments and rotational replantation", Dent Traumatol, 18, pp.42~45 (2002)
- Chen Q, "Three dimensional finite element stress analysis in the vertical fractured first premolar after bonding and replantation", Shanghai Kou Qiang Yi Xue, 15, pp.202~205 (2006)
- Arikan F, "Replantation of a vertically fractured maxillary central incisor after repair with adhesive resin", Int Endod J, 41, pp.173~179 (2008)
- Sagsen B, "Effect of bonded restorations on the fracture resistance of root filled teeth", Int Endod J, 39, pp.900~904 (2006)
- Camacho GB, "Fracture strength of restored premolars", Am J Dent, 20, pp.121~124 (2007)
- Foxton RM, "Adhesion to root canal dentine using one and two-step adhesives with dual-cure composite core materials", J Oral Rehabil, 32, pp.97~104 (2005)
- Firedman S, "Resistance to vertical fracture of roots, previously fractured and bonded with glass ionomer cement, composite resin and cyanoacrylate cement", Endod Dent Traumatol, 9, pp.101~105 (1993)
- Sornkul E, "Strength of roots before and after endodontic treatment and restoration", J Endod, 18, pp.440~443 (1992)
- Trushkowsky R, "Restoration of a cracked tooth with a bonded amalgam", Quintessence Int, 22, pp.397~400 (1991)
- Bearn DR, "The bonded amalgam restoration--a review of the literature and report of its use in the treatment of four cases of cracked-tooth syndrome", Quintessence Int, 25, pp.321~326 (1994)
- Dias de Souza GM, "Fracture resistance of premolars with bonded class II amalgams", Oper Dent, 27, pp.349~353 (2002)
- Oliveira Fde C, "Fracture resistance of endodontically prepared teeth using various restorative materials", J Am Dent Assoc, 115, pp.57~60 (1987)
- Coltak KM, "A comparison of the fracture resistance of core materials using different types of posts", Quintessence Int, 38, pp.511~516 (2007)
- Reill MI, "Influence of core material on fracture resistance and marginal adaptation of restored root filled teeth", Int Endod J, 41, pp.424~430 (2008)
- Piwowarczyk A, "Longterm bond between dual-polymerizing cementing agents and human hard dental tissue", Dent Mater, 23, pp.211~217 (2007)
- Federlin M, "Partial ceramic crowns. Influence of preparation design and luting material on margin integrity-- a scanning electron microscopic study", Clin Oral Investig, 9, pp.8~17 (2005)
- Souza Costa CA, "Human pulp response to resin cements used to bond inlay restorations", Dent Mater, 22, pp.954~962 (2006)