Prevention of Mandibular Third Molar Extractionâ Associated Periodontal Defects: A Comparative Study

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141207/1/jper0389.pd

Prevention of Mandibular Third Molar Extractionâ Associated Periodontal Defects: A Comparative Study

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141207/1/jper0389.pd

A clinical round table about the treatment of the severely resorbed posterior mandible. Part 1: challenges, endeavor and perspectives

Implant dentistry evolved and improved very quickly during the last 15 years, and the Frontier of the rehabilitation strategies is each year pushed further. However, there is one very common clinical situation that remains quite complex to treat even for the experienced clinicians: the severely resorbed posterior mandible. After teeth extraction, the centrifuge resorption of the alveolar bone is quite quick and it remains only a dense cortical bone. The presence of anatomical obstacles -mostly the mandibular inferior nerve -and the general shape and orientation of the residual bone mandibular body, often compromise a functional and stable implantation in this area after natural resorption. The problem is often solved in full arch mandibular rehabilitation through the use of implants in the anterior region and a prosthetic cantilever to rehabilitate the posterior area, but this approach is not possible when the patients still have healthy anterior mandibular teeth and only need posterior rehabilitations. The use of short implants gives excellent result in moderately resorbed posterior mandibular ridges [1], but resorption can very quickly reach the limits of what short implants can do. If a bone reconstruction is required, this mandibular cortical bone is dense and often not well vascularized, what makes difficult to regenerate some bone chamber or to graft a material on the mandible body. Moreover, the specific dynamic of the mandible body implies many constraints both intrinsic and extrinsic on the posterior bone body, what are supplementary sources of interferences with a potential bone regenerative therapeutic strategy

The platform switching approach to optimize split crest technique.

The split crest technique is a reliable procedure used simultaneously in the implant positioning. In the literature some authors describe a secondary bone resorption as postoperative complication. The authors show how platform switching can be able to avoid secondary resorption as complication of split crest technique

Odontorizectomie: un case series a 12 anni

The study evaluates whether root amputation may be considered a valid alternative to or support for implant treatment in the long term. The series comprised 20 patients, observed from 1997 to 2007; all cases were of mandibular molars in which the distal root was preserved. Causes of the operation were: failure of orthograde therapy with fracture of mesial root, perforation of pulp chamber floor and internal-external mesial root resorption. After 10 years, the success rate was 70%. The encouraging results indicate that root amputation is still an effective method. From both biologic and economic standpoints, it may be considered as an alternative to and/or support for more expensive treatments, but must be employed following precise clinical indications

Autologous fat grafting in facial volumetric restoration

The authors reported their surgical experience about structural fat grafting in the management of facial volumetric deficit. The purpose of this study was to assess the real indications, cosmetic results, complications, and global patient satisfaction of the Coleman technique in redefining facial contours in congenital and postoperative deformities. A retrospective analysis of 32 patients grafted according to Coleman's technique was performed, and the long-term outcomes and patient satisfaction were evaluated. The mean postoperative clinical follow-up was 14 months. The morphological changes were analyzed by comparing the photographic presurgical facial contour and the postoperative correction of soft tissue defects. All consecutive cases reported showed a progressive fat resorption for 3 months after surgery and its stable integration only after this period. Best results were performed in the treatment of genetically determined syndromes, such as the Franceschetti and Romberg syndromes. The authors suggest this surgical technique also for the treatment of unaesthetic cutaneous abscess cavity after incision and drainage. Unsatisfactory outcomes were obtained in the treatment of the posttraumatic facial scar, which needed more surgical procedures

A Cross-Sectional Study on Cognitive Vulnerability Patterns in Dental Anxiety: The Italian Validation of the Dental Fear Maintenance Questionnaire (DFMQ)

Dental anxiety is a crucial problem for dentistry because it may represent a significant risk to oral health. Within the framework of the Cognitive Vulnerability Model (CVM), which sheds light on the cognitive vulnerability patterns that may cause dental anxiety, this study aimed to assess the psychometric characteristics of the Italian version of the Dental Fear Maintenance Questionnaire (DFMQ). The DFMQ is a 32-item questionnaire that assesses four cognitive vulnerability patterns, i.e., dangerousness, disgust, unpredictability, and uncontrollability. In a sample of 200 dental patients who had accessed public-university-hospital dental surgery, this study assessed the model fit of the DFMQ and different types of validity (i.e., predictive, convergent, construct, and discriminant validity). In addition, potential differences between DFMQ dimensions were assessed based on gender (men vs. women) and age ranges. All indicators of cognitive vulnerability were significantly associated with high dental anxiety when each variable was included independently. In contrast, when the DFMQ subscales were considered together, only unpredictability and uncontrollability were found to be associated with high dental anxiety. Women had higher scores for unpredictability, uncontrollability, and general dangerousness than men. In addition, older patients had higher scores for some vulnerability cognitive patterns than younger patients. This study provides Italian dentists and researchers with a valid questionnaire to assess cognitive factors associated with dental anxiety

Soft tissue regeneration using leukocyte-platelet rich fibrin after exeresis of hyperplastic gingival lesions: Two case reports

Introduction The Leukocyte-PRF (Leukocyte-Platelet Rich Fibrin) belongs to a second generation of platelet concentrates which doesn’t need a biochemical blood manipulation. It is used for tissue healing and regeneration in periodontal and oral-maxillofacial surgery. We report two cases of hyperplastic gingival lesions treated by exeresis and application of PRF membranes in order to improve and accelerate tissue healing. Case Presentation Two patients (one Caucasian female, 78-year-old, and one Caucasian male, 30-year-old) were treated for hyperplastic gingival lesions. They underwent to exeresis of lesions and application of PRF membranes. Tissue healing was clinically evaluated after one, three, seven, fourteen and thirty post-operative days. No recurrences were observed after two years of semiannual follow up. Conclusion We obtained rapid and good healing of soft tissues probably due to the elevated content of leukocytes, platelets and growth factors in the leukocyte-platelet rich fibrin. According to our results we suggest L-PRF employment for wounds covering after exeresis of oral neoformations such as hyperplastic gingival lesions