BACKGROUND: Pyogenic spondylodiscitis is an infectious spinal disease that causes significant motor dysfunctions. Its diagnosis can be challenging owing to its rapid onset and nonspecific symptoms.
METHODS: A 79-year-old Japanese man with a history of type 2 diabetes mellitus and polymyalgia rheumatica presented to our department with tongue pain. Following partial glossectomy and wisdom tooth extraction under general anesthesia, on 10 postoperative day (POD) the patient developed right-sided abdominal pain and difficulty in walking. On 12 POD, the patient was admitted to a municipal hospital due to respiratory distress and paraplegia.
METHODS: The patient was diagnosed with pyogenic spondylodiscitis and empyema. Blood tests revealed elevated C-reactive protein levels (36.5), white blood cell count (19,570), and neutrophil count (17,867).
METHODS: The patient received meropenem hydrate 3 g/2 days as empiric antibiotic treatment for acute infection. Upon admission to the emergency department on 16 POD, the lung abscess was drained, hemilaminectomy was performed.
RESULTS: Blood cultures, sputum tests, and cultures from the thoracic and spinal abscesses drained during surgery revealed methicillin-sensitive Staphylococcus aureus. The infection was successfully managed, and the respiratory disturbance and inflammatory response improved. However, the lower half of the patient body remained paralyzed. Subsequently, the patient was transferred to a rehabilitation facility on 45 POD. The patient continued to undergo functional restoration training, gradually regained function, and eventually achieved the ability to walk with grasping gait.
CONCLUSIONS: This is the first case report of S aureus causing pyogenic spondylodiscitis and empyema due to blood stream infection from a post-oral surgical wound. Pyogenic spondylodiscitis arising from a secondary hematogenous infection is difficult to diagnose and can lead to severe functional impairment. Prompt and appropriate diagnosis and treatment based on detailed patient interviews, additional blood tests, and computed tomography are essential.

BACKGROUND Odontogenic keratocyst (OKC) is a common odontogenic cyst, and it occurs more frequently in the mandible, with the posterior region of the dental arch, the angle, or the ramus being the most commonly affected sites. Odontogenic keratocyst occurring within the maxillary sinus is extremely rare, accounting for only about 1% of cases. CASE REPORT A 20-year-old female patient without any clinical symptoms underwent an oral examination, during which a dense dental shadow was identified within the maxillary sinus, surrounded by a low-density shadow. Physical examination revealed absence of the left maxillary third molar, with intact mucosa. The patient reported no history of tooth extraction. X-ray and cone-beam computed tomography revealed a high-density image within the left maxillary sinus, resembling a tooth and surrounded by a soft-tissue shadow, which exhibited a greater density in comparison to conventional odontogenic cysts. The initial diagnosis was odontogenic keratocyst in the maxillary sinus with an ectopic maxillary third molar. Surgical enucleation of the cyst and extraction of the impacted tooth were carried out utilizing the Caldwell-Luc approach. Histopathological analysis confirmed the presence of OKC. No significant recurrence was noted during the 6 months of follow-up. CONCLUSIONS Odontogenic keratocysts in the maxillary sinus with ectopic third molar are rare and may not have any symptoms in the early stage. Surgery can be performed using the Caroler-Luke approach to achieve ideal treatment results. In view of the high recurrence rate of OKC, close follow-up should be conducted after surgery.

Most of the maxillary impacted third molars are located in the maxillary tuberosity, where the vision and operation space are limited. This paper reports a case of surgical extraction of the left maxillary horizontal superhigh impacted third molar, which is located between the roots of the adjacent teeth and is closely related to the maxillary sinus. The digital simulation technology was used to reconstruct a three-dimensional visual image of the patient\'s maxilla, related teeth, and other adjacent anatomical structures to assist in finding the optimal surgical method accurately. Root dislocation before the crown not only protects the roots of the adjacent tooth, but also reduces the risk of maxillary sinus lining damage or perforation during operative procedures, improves the efficiency of the operation, and reduces surgical trauma, which conforms to the concept of minimally invasive surgery and provides a new idea and experience for the clinical extraction of such maxillary impacted third molars.
上颌阻生第三磨牙多位于上颌结节区，此区域手术操作空间小、视野差。本文报道1例牙冠位于邻牙两牙根之间、与上颌窦关系密切的上颌水平超高位阻生第三磨牙的拔除。利用数字化模拟技术三维重建患者部分上颌骨、相关牙齿等毗邻解剖结构，精准制定最佳手术方案，采用牙根先脱位、牙冠后脱位法拔除阻生牙。该法既保护了邻牙牙根，也降低了上颌窦黏膜损伤以及穿孔的风险，提高了手术效率，减小了手术创伤，符合微创牙槽外科理念，为临床上拔除此类埋伏阻生牙提供了新思路和经验。.

BACKGROUND: Orthodontic purposes, such as the prevention of anterior crowding, are common and controversial indications for surgical removal of the third molar (M3) germ in young patients. A higher tooth bud position and the risk of tooth displacement in the infratemporal fossa when surgery of the maxillary M3 germ is planned makes the success of germectomy unlikely with little benefit. A rare complication of maxillary M3 germ surgery is partial tooth building after germectomy.
METHODS: We report the case of a 14-year-old patient who was referred for germectomy of the maxillary M3 in the early development germ stadium to address space constraints and obstruction to the eruption of the second molar (M2) teeth. Computed tomography (CT) examination was used to verify the position and development of the maxillary M3 germ. The surgical procedure was performed without any complications. Eight years after the surgery, the patient presented with indefinable pain in the right upper jaw in the germectomy area. Cone-beam CT revealed a partial tooth formation in the form of a radix relict in the region of the maxillary M3.
CONCLUSIONS: The ongoing debate surrounding germectomy revolves around its indications and timing, considering factors such as patient age, anatomical appearance, and root formation stage. Complications, like partial tooth formation postgermectomy, highlight the importance of precise timing in treatment.
CONCLUSIONS: This is the first report of partial tooth formation as a complication after germectomy of the M3 germ in a complete crown-formation stadium.

OBJECTIVE: Digital protocols and bioactive materials may reduce complications and improve tooth autotransplantation (ATT) success and survival rates. This prospective study assesses the performance of a fully digital autotransplantation protocol of close-apex molars with the adjunctive application of Enamel Matrix Derivatives (EMD).
METHODS: Twelve adult patients with 13 hopeless molar teeth were replaced with autotransplantation of closed apex third molars. Outcomes, including success and survival rates, clinical, endodontic, radiographic, patient-reported outcome measures (PROMs), and digital image assessments, were conducted over a two-year follow-up period.
RESULTS: Survival and success rates were 100% and 91.2%, respectively, with no progressive inflammatory or replacement root resorption (ankylosis) except for one tooth presenting radiographic furcation involvement. A significant probing depth reduction of 2.4 ± 2.58 mm and CAL gains of 2.8 ± 3.03 mm were observed in transplanted teeth compared to the hopeless receptor teeth. Radiographic bone levels remained stable throughout the study period (-0.37 ± 0.66 mm), and digital image assessments showed minimal alveolar ridge width changes (-0.32 to -0.7 mm) and gingival margin changes (-0.95 to -1.27 mm) from baseline to last visit. PROMs indicated very high patient satisfaction.
CONCLUSIONS: The use of a digital ATT protocol with adjunctive use of EMD in closed-apex third molars demonstrated promising short-term high success and survival rates. Additionally, this type of therapy adequately preserves the dimensions of the alveolar ridge in the receptor site.
CONCLUSIONS: This is the first prospective clinical study examining the effect of a digital tooth autotransplantation protocol combined with the application of EMD. It demonstrates that this approach is an effective treatment for replacing hopeless teeth and also validates the digital assessment of ATT alveolar ridge preservation at the recipient site.

Dental fusion is defined as an abnormality in tooth shape caused by developmental tooth disturbances that produce an intimate union of dental tissues. This case report discusses treatment of a mandibular impacted \"double\" third molar in a 21-year-old patient that could have been related to either gemination or tooth fusion. Radiological examination allowed for careful analysis of the tooth\'s shape and root development, relation to the inferior alveolar nerve, and 3-dimensional position. After evaluation of therapeutic options and risks, and with the patient\'s consent, the authors opted to extract the tooth in question. Such favorable conditions as the incomplete development of the roots and the relatively young age of the patient, combined with the use of an antibiotic and antiseptic prophylaxis as well as a standard surgical approach, enabled a successful result to be achieved with no related complications.

OBJECTIVE: To assess the impact of endoscope-assisted fractured roots or fragments extraction within the mandibular canal, along with quantitative sensory testing (QST) alterations in the inferior alveolar nerve (IAN).
METHODS: Six patients with lower lip numbness following mandibular third molar extraction were selected. All patients had broken roots or fragments within the mandibular canal that were extracted under real-time endoscopic assistance. Follow-up assessments were conducted on postoperative days 1, 7, and 35, including a standardized QST of the lower lip skin.
RESULTS: The average surgical duration was 32.5 min, with the IAN exposed in all cases. Two of the patient exhibited complete recovery of lower lip numbness, three experienced symptom improvement, and one patient remained unaffected 35 days after the surgery. Preoperative QST results showed that the mechanical detection and pain thresholds on the affected side were significantly higher than those on the healthy side, but improved significantly by postoperative day 7 in five patients, and returned to baseline in two patients on day 35. There were no significant differences in the remaining QST parameters.
CONCLUSIONS: All endoscopic surgical procedures were successfully completed without any additional postoperative complications. There were no cases of deterioration of IAN injury, and lower lip numbness recovered in the majority of cases. Endoscopy allowed direct visualization and examination of the affected nerve, facilitating a comprehensive analysis of the IAN.

Third molar extraction is the most common procedure in oral and maxillofacial surgery. Third molars are considered less functional than other teeth and are often extracted. Sometimes, they are also used for auto-transplantation for the benefit of oral rehabilitation. Since many biological factors are involved in this surgical approach, herein, we outline a review of the biological characteristics of medico-legal/forensic interest, in addition to presenting a successful clinical case. A scoping review of currently available research data (following the principles of PRISMA-ScR or the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews) on third molar auto-transplantation was conducted by drawing upon the main databases (Scopus, PubMed, Google Scholar and LILACS) to evaluate biological and clinical characteristics possibly relatable to forensic issues. All the collected data were summarized and elaborated on for the purpose of this article. A patient underwent extraction of the right upper first molar and auto-transplantation of the unerupted ipsilateral third molar. Many biologic and clinical factors are involved in the success of this clinical procedure. Knowledge of third molar anatomy, of its development and viable surgical approaches are all essential elements; just as important are the treatment of the tooth before and after transplantation and the integrity of the periodontal ligament. Follow-up of the clinical case for 5 years made it possible to verify the stability of the procedure over time. Third molar auto-transplantation is feasible and cost-effective. However, the use of third molars as donor teeth in auto-transplantation may have medico-legal implications. The lack of official protocols and consistent evidence-based guidelines for operators still prevent such a procedure from becoming mainstream; therefore, it is viewed with suspicion by clinicians and patients, even though the biological factors herein detected point to a reasonably high degree of safety. The understanding of many specific biological and clinical factors involved in the stability of third molar auto-transplantation allows for a thorough understanding of the forensic implications relevant to clinical practice. Effective communication and information provision are therefore of utmost importance, in the interest of both patients and doctors.

BACKGROUND: The mandibular nerve and the mental foramen have occasionally shown variations in its anatomy. This report aims to present a case of lingual mental foramen recognised on three-dimensional cone beam computed tomographic imaging (CBCT).
METHODS: Routine Orthopantomogram (OPG) and CBCT images were evaluated to assess the status of impact third molars in a 31-year-old female who had visited the dental clinics in our institution. The OPG image failed to reveal any anatomic variation in the position of the mental foramen. On tracing the course of the mandibular canal in CBCT images, two foramina were traced at the region of premolar. One opened towards the buccal cortical plate at the normal position of the mental foramen and an accessory lingual mental foramen had an opening on the lingual cortical bone at the same level as the mental foramen.
CONCLUSIONS: Understanding variations of the mental foramen is extremely essential in dentistry to carry out successful anaesthetic or surgical interventions and to avoid complications such as nerve damage or excessive bleeding.

BACKGROUND: Peripheral facial palsy is characterized by acute peripheral facial nerve paralysis. While most cases have no identifiable cause, some are linked to infectious or noninfectious factors. The potential connection between herpes simplex virus-1 and peripheral facial palsy has been studied since the 1970s, with a small number of cases reported following tooth extraction. Patients who have treatment delayed for over a year and still exhibit no signs of recovery have a bleak prognosis. In this case, factors contributing to facial paralysis in this patient are facial nerve injury as a result of wisdom teeth extraction, improper nursing, and delayed treatment.
METHODS: A 23-year-old female presented with numbness and stiffness on the right side of the outer skin around the lips. These symptoms persisted for about 4 years after the extraction of the right lower wisdom tooth. Physical examination revealed House-Brackmann grade II peripheral facial paralysis. Acupuncture and traditional Chinese medicine treatments were initiated with an aim to facilitate nerve repair and neurofacilitation in the affected area. Following a 4-week course of treatment, the patient experienced a decrease in numbness and stiffness in the area, and treatment was discontinued.
CONCLUSIONS: The combination of acupuncture and traditional Chinese medicine is a safe and promising supplementary therapy for peripheral facial palsy caused by wisdom tooth extraction. Nevertheless, it is imperative to conduct larger scale and randomized controlled studies to determine whether these complementary interventions have a significant additive or synergistic effect toward achieving complete recovery in the patients.
Die periphere Fazialisparese ist durch eine akute periphere Gesichtsnervenlähmung gekennzeichnet. Meist ist keine erkennbare Ursache feststellbar, doch besteht bei einigen Fällen ein Zusammenhang mit infektiösen oder nicht-infektiösen Faktoren. Ein möglicher Zusammenhang zwischen dem Herpes-simplex-Virus-1 (HSV-1) und der peripheren Fazialisparese wird seit den 1970er Jahren untersucht, und es wurde über eine kleine Zahl von Fällen nach einer Zahnextraktion berichtet. Patienten, bei denen die Behandlung erst nach einjähriger Verzögerung oder noch später beginnt und die keine Anzeichen für eine Besserung zeigen, haben eine ungünstige Prognose. In diesem Fall sind die Faktoren, die zur Gesichtslähmung des Patienten beitragen, eine Verletzung des Nervus facialis infolge der Weisheitszahnextraktion, unsachgemäße Pflege und ein verzögerter Behandlungsbeginn.Eine 23-jährige Frau stellte sich mit Taubheitsgefühl und Steifigkeit auf der rechten Seite im Bereich der äußeren Haut um die Lippen herum vor. Die Symptome bestanden seit der Extraktion des rechten unteren Weisheitszahns etwa 4 Jahre zuvor. Die körperliche Untersuchung ergab eine periphere Fazialisparese Grad II nach House-Brackmann. Es wurde eine Behandlung mit Akupunktur und traditioneller chinesischer Medizin begonnen, um die Nervenreparatur und die Neurofazilitation im betroffenen Bereich zu fördern. Nach vierwöchiger Behandlung kam es bei der Patientin zu einer Abnahme des Taubheitsgefühls und der Steifigkeit im betroffenen Bereich und die Behandlung wurde beendet.Die Kombination von Akupunktur und traditioneller chinesischer Medizin ist eine sichere und erfolgversprechende ergänzende Therapie für die periphere Fazialisparese nach Weisheitszahnextraktion. Allerdings müssen unbedingt größere und randomisierte kontrollierte Studien durchgeführt werden, um festzustellen, ob diese komplementärmedizinischen Methoden in Hinblick auf das Ziel einer vollständiger Genesung der Patienten einen signifikanten additiven oder synergistischen Effekt haben.