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13. Restoration of a Hopeless Maxillary Second Premolar with Extraction, Site Preservation, and Dental Implant: A Case Report By Fernán López, Mauricio Naranjo
A patient presented for treatment of a maxillary left second premolar. Clinical examination revealed that the tooth was hopeless due to severe carious lesions that extended subcrestally. Tooth #13 was atraumatically extracted and grafted with xenograft material (Bio-Oss Collagen, Geistlich Pharma North America, Inc., Princeton, New Jersey, USA). A free gingival graft was placed over the grafted socket. After 6 months of healing, the grafted site had substantial amounts of keratinized gingival tissue and outstanding bone formation. A dental implant (Prima Connex, Keystone Dental Inc., Burlington, Massachusetts, USA) was placed at the edentulous site #13 with simultaneous placement of a healing abutment at the time of surgery. (Note that no sinus augmentation technique was required). After 4 months of healing, the implant was restored with a custom abutment and porcelain fused to metal restoration. A 2 year clinical follow up of the case revealed excellent peri-implant crestal bone preservation and healthy keratinized gingival tissue.
21. Prevalence of Non-Dental Pathology in Cone Beam Computed Tomography Studies for Dental Implants By TJ Balshi, GJ Wolfinger, J Yang, DA Wulc, SF Balshi
Cone beam computed tomography (CBCT) technology is becoming increasingly useful in the treatment planning of surgical procedures in multiple dental specialties. These images not only simplify surgical planning, they also provide the practitioner with an opportunity to diagnose dental and non-dental pathology visible in the oromaxillofacial region.
29. Cumulative Interceptive Supportive Therapy (CIST) and Early Implant Complications Management By Dr. Abdul Naser Tamim, Dr. M. Adel Mufti, Dr. Arif Al Junaibi, Dr. Ninette Banday
In early stages of implant placement many clinicians are inclined to remove implants showing signs of failure to avoid further bone loss. However, management of early implant complications can be undertaken using the Cumulative Interceptive Supportive Therapy (CIST), which was proposed by Mombelli and Lang as a guideline for treating implants affected by peri-implant disease in late failure management. This paper describes a case of early failing implant successfully managed using the (CIST) concept. The implant had been placed in extraction site to replace a lower left second premolar in a non-smoking 45 year old man, and followed-up for longer than 3 years. The outcomes suggest that the protocol could result not only in stopping the inflammatory process, but also in reversing it and restoring bone loss, and that the decision to remove the implant should not be taken routinely.
39. Effect of Macro and Nano-Geometry on Primary Stability of Implants: A 3-month Prospective Pilot Study in Humans By Monish Bhola, Kai-Chiao J Chang, Joanne S. Yihan, Shilpa Kolhatkar, Prashant Nanda
Primary stability of dental implants is essential for successful osseointegration. The geometry of an implant and the nature of its surface influence the degree of implant stability and consequently, the loading time. The goal of this study was to measure the initial stability of an implant system with a dual thread macro design and a hydrophilic charged surface using resonance frequency analysis (RFA).