Local risk factors for one-year dental implant loss and late loss in 287 failed implants caused by peri-implantitis or infection after prosthesis loading: a retrospective study.

The purpose of this paper was to retrospectively assess the local factors that are likely to be associated with the risks for one-year dental implant loss.A retrospective study was designed and implemented. The sample consisted of patients who underwent an implant loss or removal caused by peri-implantitis or infection after prosthesis loading.

[The relationships between different surgical approaches for maxillary sinus augmentation and implant failure and complications: a retrospective cohort study].

Purpose: To investigate the 5-year survival and complication rates of implants placed in grafted sinuses with different surgical approaches and analyze the causes for failure.

Methods: This study retrospectively observed the prognosis of patients who underwent maxillary sinus augmentation by means of lateral window technique(LWT) or transalveolar osteotomy technique (TOT) and simultaneously installed implants performed, in Hefei Stomatological Hospital. The primary predictor variables were surgical approaches, including LWT and TOT.

Proper Choice of Donor Site Veins for Patients Undergoing Free Radial Forearm Flap Reconstruction for the Defects of Head and Neck.

Purpose: The purpose of this study was to analyze the reliability of the deep venous drainage system of the free radial forearm flap.

Materials And Methods: The authors implemented a retrospective cohort study and enrolled patients admitted for the evaluation and management of head and neck tumors with radial forearm flap reconstruction. The primary predictor variables were the donor site veins, including the deep, dual, and superficial venous drainage systems.

Mattress cerclage combined with electrochemical therapy and pingyangmycin injection after embolization for management of arteriovenous malformation on oral and maxillofacial region.

Background: The purpose of the article was to assess the clinical results of mattress cerclage combined with electrochemical therapy and pingyangmycin injection after embolization in treating arteriovenous malformations (AVMs).

Methods: During the period from January 2008 to December 2012, a total of 26 patients with AVMs were treated through mattress cerclage combined with electrochemical therapy and pingyangmycin injection after embolization and were retrospectively examined. The size of the lesions ranged from 2.

Reconstruction for facial nerve defects of zygomatic or marginal mandibular branches using upper buccal or cervical branches.

Background: Many reconstructive methods for facial nerve defects have been described previously, such as the greater auricular nerve graft, the sural nerve graft, or hypoglossal-facial nerve anastomosis. Herein, we want to instruct a new technique of repairing facial nerve defects of zygomatic or marginal mandibular branches using upper buccal or cervical branches when we have to face segment defects of facial nerve with wide gaps between facial nerve stumps.

Methods: The distal part of the upper buccal or cervical branches with peripheral tissue was removed to repair the defects of zygomatic or marginal mandibular branches.

Appraisal of efficacy and safety of intralesional injection of high concentration of bleomycin A5 for treatment of huge macrocystic lymphatic malformations in cervical region.

The objective of this study was to investigate the therapeutic effects and safety of intralesional injection of high concentration of bleomycin A5 for huge (more than 5 cm in diameter) macrocystic lymphatic malformations (LMs) in the cervical region. Thirty-two patients with huge macrocystic LMs were treated with percutaneous injection of bleomycin A5 in our department between 2006 and 2011. Among them, 13 patients had unilateral submandibular lesions, and 19 patients had lesions in anterior cervical regions.

Treatment of postburn anteriorly located neck contractures with local flaps.

Objective: The objective of this study was to summarize our experience of using local flaps for the reconstruction of neck defects after cervical contractures release, particularly of using the extended deltopectoral flaps whose distal margin was beyond the anterior axillary line even reaching dorsalis for reconstruction of anterior neck scar contractures in a single-stage procedure.

Methods: From 1987 to 2008, neck scar contractures were reconstructed using various local flaps in 68 patients with postburn anteriorly located neck contractures. The local flaps used consisted of 36 deltopectoral flaps, 6 extended deltopectoral flaps, 4 free scapular flaps, 8 neck-shoulder flaps, and 14 Z-plasties.

Reconstruction for defects of the lower lip after tumor ablation.

Background: The lip carcinoma, which frequently affects the lower lip, is one of the most common cancers of the head and neck region composing 25% to 30% of all oral cancers. The accepted method of therapy for lip cancer is surgical excision and reconstruction. The repair should satisfy 2 fundamental requirements: to achieve appropriate aesthetic quality and to conserve labial function.

Effect of electrochemical treatment on high-flow vascular malformations in the maxillofacial region.

We explored the effect of electrochemical therapy for the treatment of high-flow venous malformations in the maxillofacial region in 32 patients. We used a method of anaesthesia that was suitable to the site and size of the lesion, and then inserted platinum needles into the lesion in a sterile environment. We protected the normal skin by inserting the cannulas into plastic sheaths, and connected the needles to an electrochemical machine.