Lingual nerve injury is one of the serious complications in alveolar surgery, which often occurs after the extraction of the mandibular third molar (M3M), with the incidence varying from 0.1% to 22%.Due to the limitations of clinical and conventional radiographical examinations, some severe cases do not receive accurate diagnosis and effective treatment in the early stage of injury, resulting in permanent lingual nerve injury and consequent impact on the quality of life. In recent years, magnetic resonance neurography (MRN) has been gradually used in the examination of nerve injury, and several new MRN sequences have reasonable visualization of severe lingual nerve injury, making early diagnosis and therapy possible. This article reported a patient with lingual nerve injury caused by the removal of M3M for 2 weeks, and complete disconnection of the affected lingual nerve was clearly visualized through MRN. Subsequently, a nerve anastomosis surgery was performed, and the disconnection was observed during the operation, proving the consistency of the MRN imaging and the fact. Postoperative follow-up showed gradually functional recovery of the lingual nerve.
As a traditional Chinese medicinal material, common bletilla rubber is widely distributed, cheap and easy to obtain. With the development of traditional Chinese medicine, common bletilla rubber is widely used in the treatment of bacterial infection, tumor, digestive tract ulcer, gastric mucosal lesions, external blood and so on. In this article, the pharmacological properties and chemical components of common bletilla rubber were summarized, and the mechanisms and pathways of each ingredient of common bletilla rubber were also analyzed. The application of common bletilla rubber in the field of oral diseases, including oral mucosal diseases, caries, intramedullary barrier materials and periodontal tissue engineering scaffold materials were summarized. It was proved that common bletilla rubber could play an important role in the fields above, no matter which form it was in. This article may provide reference for the further promotion of common bletilla rubber in the treatment of oral diseases.
Periodontitis and diabetes are common diseases in clinic, which have a huge impact on the health and life of patients. In recent years, it was proven that these two diseases have a strong correlation, so drugs for treating periodontitis and diabetes have also become a research hotspot. Resveratrol is a kind of polyphenol compound from natural plants, which has anti-inflammatory, antioxidant, lipid lowering and metabolic regulating effects. At the same time, it also has the advantages of small toxic side effects, wide access, low price, etc. It is a kind of auxiliary antibacterial drug with great potential in the treatment of periodontitis and diabetes, and also a new way to solve the problem of bacterial resistance in chronic inflammatory diseases. This article reviewed the new progress of resveratrol in the treatment of periodontitis and diabetes in recent years, in order to provide new ideas for its further research and application.
Children with dental phobia are very common in clinics, and it is usually not possible to complete oral treatment through conventional methods for these children. By promoting tooth remineralization and isolating the nutrition supply of cariogenic bacteria, interim treatment can restrain the progress of caries to a certain extent, and gain time for further treatment of deciduous teeth and normal replacement of permanent teeth. It is safe, simple and economical, such that it is expected to become an alternative treatment that is more easily accepted by children and parents. This article reviewed the research advances of several interim treatment methods for deciduous tooth caries.
Objective:To explore the clinical therapeutic effect of additive manufacturing Ti-6Al-4V titanium alloy implants in dental implant restoration.Methods:Retrospective analysis was conducted on 86 patients with posterior tooth loss treated in the Department of Stomatology, the Fifth Affiliated Hospital, Sun Yat-sen University, and the Department of Dental Implantation, the Affiliated Hospital of Guangxi Medical University from November 2020 to June 2022, with a total of 87 missing teeth. Among them, there were 43 cases in the test group, with 44 missing teeth, which were restored with Ti-6Al-4V titanium alloy implants made of self-developed additives. In contrast, another 43 cases in the control group, with 43 missing teeth, were restored with B & B implants (Italy) . The implant success rate, changes in bone tissue around the implant, gingival status, and chewing efficiency within six months after implantation were compared between the two groups with SPSS 23.0 at a significance level of 0.05.Results:In the test group, there was no implant loss, no redness or swelling of the gingiva, and the chewing function was normal after restoration. Two cases showed marginal bone loss, with a success rate of 95.5%. In the control group, two implants failed, and one case had a repeated loose of the abutment screw. The implant success rate was 93%, and there was no statistically significant difference in the success rate between the two groups (χ2 = 0.237, P>0.05) ; The test group had no occlusal interference and food impaction after implant denture restoration, with good chewing function and a total effective rate of 100%. In the control group, one case had poor chewing function due to loose screw, with a total effective rate of 97.7%. There was no statistically significant difference in chewing function (χ2 = 0.181, P>0.05) . The bone resorption around the implant was less than 0.6 mm at each follow-up time point in both the two groups, with no significant difference between them (t = 1.974, P>0.05) . Patient satisfaction with the restoration was 93.2% in the test group and 95.3% in the control group, which was not statistically different (χ2 = 0.236, P>0.05) .Conclusions:Additive manufacturing Ti-6Al-4V titanium alloy implant has achieved satisfactory short-term clinical outcomes in terms of success rate, chewing function and aesthetic effect in the restoration of missing posterior teeth, which can be applied clinically. However, its long-term clinical effect needs to be further observed.
