External cervical resorption: an analysis using cone beam and microfocus computed tomography and scanning electron microscopy. (7th May 2013)

• Record Type: Journal Article
• Authors: Gunst, V.; Mavridou, A.; Huybrechts, B.; Van, G.; Bergmans, L.; Lambrechts, P.
• Is Part Of: International endontic journal. Volume 46:Number 9(2013:Sep.)
• Page Start: 877
• Page End: 887
• Publication Date: 2013-05-07
• Subjects: Endodontics -- Periodicals; 617.6342
• DOI: 10.1111/iej.12073
• Languages: English
• ISSNs: 0143-2885

Abstract

<abstract abstract-type="main" xml:lang="en" id="iej12073-abs-0001"> <title>Abstract</title> <sec id="iej12073-sec-0001" sec-type="section"> <title>Aim</title> <p>To provide a three‐dimensional representation of external cervical resorption (ECR) with microscopy, stereo microscopy, cone beam computed tomography (CT), microfocus CT and scanning electron microscopy (SEM).</p> </sec> <sec id="iej12073-sec-0002" sec-type="section"> <title>Summary</title> <p>External cervical resorption is an aggressive form of root resorption, leading to a loss of dental hard tissues. This is due to clastic action, activated by a damage of the covering cementum and stimulated probably by infection. Clinically, it is a challenging situation as it is characterized by a late symptomatology. This is due to the pericanalar protection from a resorption‐resistant sheet, composed of pre‐dentine and surrounding dentine. The clastic activity is often associated with an attempt to repair, seen by the formation of osteoid tissue.</p> </sec> <sec id="iej12073-sec-0003" sec-type="section"> <title>Key learning points</title> <p> <list id="iej12073-list-0001" list-type="bullet"> <list-item> <p>Cone beam CT is extremely useful in the diagnoses and treatment planning of ECR.</p> </list-item> <list-item> <p>SEM analyses provide a better insight into the activity of osteoclasts.</p> </list-item> <list-item> <p>The root canal is surrounded by a layer of dentine that is resistant to resorption.</p> </list-item> </list> </p> </sec> </abstract>