Volumetric changes of the alveolar ridge after socket preservation with various techniques have been investigated frequently. However, changes in bone density and quality of bone within the extraction sockets have seldom been studied. The purpose of this study was to evaluate the bone quality of grafted versus non-grafted socket sites prior to dental implant placement using Hounsfield unit (HU) values derived from cone-beam computed tomography (CBCT) imaging. The data was collected from 39 healed extraction sites reviewed over a one-year period. Subjects eligible for the study had a bone replacement graft and barrier membrane. Both study and control groups had CBCT scans performed immediately after extraction and four to five months after extraction for planning implant placement. HU values were measured from the CBCT scans and compared between groups. Intragroup variability was assessed utilizing standard deviation and standard error of the mean. Intergroup differences were evaluated using unpaired t-test. A generalized lack of significant difference in bone quality was observed between groups with the only statistically significant difference observed in the posterior maxilla. Future radiographic and histologic assessments of bone quality after socket preservation are required to determine the 'ideal' approach to preserve an extraction socket prior to implant placement. (J Oral Sci 57, [195][196][197][198][199][200] 2015)
The bony augmentation of severely atrophied mandible is generally required for the purposes of prosthetic rehabilitations. The treatment strategies have been well defined in the literature ranging from osteotomy techniques to distraction osteogenesis. Visor osteotomy is the milestone of the reconstructive surgery for the atrophied mandible which has received some modifications. In the present study, the authors describe a new modification of visor osteotomy in which a complete coronal split osteotomy down to the inferior border at the mental region has been performed. The main advantage of this modification is to preserve the lingual cortex from the inferior border of the mandible up to the alveolar region without disturbance of the suprahyoid muscle attachments. The procedure is thought to be a "highly sensitive" one and undesired fractures may occur during splitting of the bony segments.
Giant sialoliths larger than 20 mm are rare. The surgery has to be performed with the minimally invasive method in order to avoid the morbidity associated with the surgical techniques. In this report the surgical removal of a giant sialolith of 25 mm by using diode laser is described. A 57year-old female was presented with a firm mass in the anterior part of the left side of the floor of the mouth. Following the clinical and radiological examination, the left submandibular duct sialolith was diagnosed. The diode laser was used with a power setting of 810 nm of wavelength, 4.0 W of power, 0.5 ms continuous wave and 1000 Hz of frequency for the incision. The giant sialolith was adequately removed under local anesthesia. The procedure was well-tolerated. The wound healing was uneventful in the postoperative period. By the 10th day after surgery the patient had no complaints and the salivary flow was normal. It was concluded that the use of 810-nm diode laser application is a safe and useful technique. Due to the excellent cutting and coagulation ability, there is a low complication rate, making it an appropriate alternative for this type of surgical procedure.
Bu çalışmanın amacı; ağız, diş ve çene cerrahisi kliniğine diş çekimi amacıyla başvuran hastaların durumluk, sürekli ve dental kaygı düzeylerini belirlemek ve kaygının ilişkili olabileceği düşünülen faktörlerle olan bağlantısını değerlendirmektir.
GEREÇ VEYÖNTEM: 75. Yıl Ağız ve Diş Sağlığı Hastanesi Cerrahi Müdahale Kliniği'ne Nisan 2016-Nisan 2017 tarihleri arasında başvuran hastalara (n=77) durumluk, sürekli ve dental kaygı düzeyinin değerlendirilmesi amacıyla Durumluk Sürekli Anksiyete Ölçeği, Modifiye Dental Anksiyete Skalası ve kaygının bağlantılı olabileceği düşünülen faktörlere ilişkin soruları içeren anketler uygulandı. Modifiye Dental Anksiyete Skalası skor değeri ≥ 19 olan katılımcılar yüksek dental kaygı düzeyine sahip olarak değerlendirildi. Katılımcıların demografik özelliklerini de içeren veriler istatistik programına aktarılarak tanımlayıcı veriler ile sonuçlar değerlendirildi. İstatistiksel analizlerde Kruskal Wallis, Mann Whitney U ve Ki-kare testleri kullanıldı. Tüm analizlerde p<0.05 düzeyi istatistiksel olarak anlamlı kabul edildi.BULGULAR: Çalışmaya katılan hastaların %7.8'inde yüksek dental kaygı saptanmıştır. Orta ve yüksek düzeyde durumluk ve sürekli kaygı saptanan hastaların oranları ise sırasıyla %45.5 ve %37.7 olarak belirlenmiştir. Çalışmaya katılan hastaların önemli bir kısmında (%54.5) diş çekimi öncesi ilgili dişte ağrı varlığı bildirilmiştir. Cinsiyetler açısından karşılaştırma yapıldığında durumluk ve sürekli kaygı dağılımları (düşük, orta ve yüksek) açısından anlamlı farklılıklar elde edilmiştir. SONUÇ: Bu çalışmanın sonuçları diş çekim işlemi öncesi kaygının diş hekimliği alanındaki gelişmelere rağmen varlığını sürdürdüğünü göstermektedir. Ağız cerrahisi uygulamalarında anksiyete tanımlayıcı/ giderici yöntemlerin uygulanması hasta konforunun artırılması ve cerrahi koşulların iyi hale getirilmesi açısından önem taşımaktadır.
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