רפואת הפה והשיניים - עיתון ההסתדרות לרפואת שיניים בישראל - כרך ל"ז, גיליון מס' 3 אב תש"פ

Treatment goals in orthognathic patients

Yitschaky Y.**, Friedman M.*, Rushinek H.*** *Dept. of Orthodontics, Faculty of Dental Medicine, The Hebrew University-Hadassah School of Dental Medicine, Founded by the Alpha Omega Fraternity, Jerusalem, Israel, ** Private clinic, ***Dept. of Oral and maxillofacial surgery, Faculty of Dental Medicine, The Hebrew University-Hadassah, School of Dental Medicine, Founded by the Alpha Omega Fraternity, Jerusalem, Israel.

Predefined treatment goals support proper planning of combined surgical and orthodontic treatment. Several analyses have been proposed, with different reference structures and varying criteria for achieving harmonious and functional jaw relations and facial outlines. This review discusses three analyses, who are very prevalent in clinical usage, and presents the advantages and disadvantages of each analysis. Our conclusion that though relying solely on the cephalometric numbers

is not advisable, and will probably not lead to the best results in certain patients, there is a marked advantage in applying a chosen analysis in everyday practice, in order to achieve more consistent treatment results. As a rule, there is advantage to analyses who rely on soft tissue reference lines, over hard tissue traditional cephalometric analyses. Keyword: Diagnosis, treatment planning, Orthognathic surgery.

Zirconia implants in dentistry

Abu-Hussein H., Mayer Y. Dept. of periodontology, School of Graduate Dentistry, Rambam Health Care Campus, Haifa, Israel.

For the last decades, dental titanium implants were considered as the gold standard for rehabilitation of edentulous ridges due to titanium characteristics of biocompatibility, excellent osseous integration and clinical reliability. However, the visible dark shadow through the thin gingiva impairs the esthetic outcome, which constitutes an obstacle, especially, for patients with high esthetic demand, and this raised the demand for more esthetic implant material. Thus, the zirconia emerged as a promising alternative to conventional titanium implants, due its esthetic color, high fracture toughness and bending

strength, reduced bacterial biofilm formation and high biocompatibility. Studies reported a survival rate of 92% (95% CI 87-95), BIC 26%-71%, marginal bone loss of 0.7mm after one year, technical complications of 1.6%, implant fracture of 0.2% and biological complication of 4.2%. All these parameters were comparable to titanium implant. Thus, Zirconia implants considered as a potential alternative to titanium implants. However, additional randomized controlled clinical trials are also required to assess the long term their survival and success rates in comparison with titanium.

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.3 ז, גיליון ״ פ, כרך ל ״ רפואת הפה והשיניים, אב תש