Efficacy of guided autofluorescence laser therapy in MRONJ: a systematic review.

OBJECTIVE: This review aims to explore the efficacy of fluorescence-guided excision in the treatment of necrotic bone and highlights the importance of fluorescence in distinguishing viable margins from necrotic ones for a more targeted and predictable management of MRONJ. MATERIALS AND METHODS: The review was conducted according to PRISMA guidelines using PubMed, Scopus, and Web of Science databases from January 1, 2008, to May 17, 2023. The Boolean search strategy with the following keywords "osteonecrosis" AND "fluorescence" was performed. Then, the articles were subjected to screening and eligibility phases. The papers about the use of autofluorescence-guided laser therapy in patients with jaw osteonecrosis were included. RESULTS: A total of 320 articles were initially identified through an electronic search, and ultimately, 17 papers were included in the qualitative analysis. CONCLUSIONS: In conclusion, our findings demonstrate that the VELscope system allows for clear visualization of the bone, making guided autofluorescence a precise, safe, and reliable technique.

Malignant transformation of oral proliferative verrucous leukoplakia: a series of 48 patients with suggestions for management.

Proliferative verrucous leukoplakia (PVL) is a rare and refractory form of oral mucosal leukoplakia of unknown origin, characterized by high rates of malignant transformation. Different diagnostic criteria, terminologies, and therapeutic approaches have been proposed since the first report in 1985. There remains no general agreement regarding the clinical and histological diagnosis, prevention, and correct management of this disease. This retrospective study investigated 48 patients affected by PVL showing at least one malignant transformation and followed up at 2-month intervals. Twenty-five were female (52.1%) and 23 (47.9%) were male; their median age was 67 years (range 40-93 years). Follow-up ranged from 18 to 240 months. Clinical examination included the use of Lugol's solution to prevent clinical underestimation of the margins and toluidine blue for suspicious areas. Surgical excision by scalpel was the preferred treatment for suspicious lesions, with only five carcinomas surgically removed by diode laser and two by CO2 laser. All specimens were accurately mapped after formalin fixation. Fifteen patients (31.3%; 10 female, five male) developed one oral carcinoma, while 33 (68.7%) developed two or more primary tumours (range 3-12). Only four patients (8.3%), who developed between 2 and 8 oral squamous cell carcinomas (OSCCs), died of tumour-related causes. The pre-surgical clinical workup, subsequent surgical treatment, and follow-up are key to success for patients affected by PVL with malignant transformation into stage 1 OSCC and/or verrucous carcinoma, leading to a high overall survival rate.

Oral lesions as first clinical manifestations of Crohn's disease in paediatric patients: a report on 8 cases.

AIM: Oro-facial granulomatosis is a descriptive term commonly encompassing a variety of conditions that exhibit similar clinical and microscopic features. It is generally used to describe persistent enlargement of the soft tissues of the oral and maxillofacial region. MATERIALS AND METHODS: We report on the salient clinical features of 8 cases of Crohn's disease in paediatric patients (age range from 9 to 13 years old), with oral lesions as first clinical manifestations. RESULTS: The clinical presentation of oro-facial granulomatosis is highly variable but usually recurrent facial swelling, mainly in the lips with or without intraoral manifestations, is the single most common clinical sign at onset. The association with systemic conditions such as sarcoidosis and Crohn's disease has been widely reported in literature. In paediatric age, oro-facial granulomatosis may frequently represent an extra-intestinal manifestation of Crohn's disease and oral lesions can be the first sign of an unknown intestinal disease. The diagnosis in paediatric patients is challenging as oro-facial granulomatosis may precede Crohn's disease by several years, frequently remaining the only evident active focus of the disease. CONCLUSION: The detection of specific oral manifestations often preceded by painless gingival enlargement (diffuse lip and buccal mucosal swelling, oral cobblestoning, buccal sulcus ulceration and mucosal tags) and/or unspecific or ancillary ones (cheilitis, scaly perioral erythematous rashes and frank intraoral abscess formation, labial and tongue fissuring, glossitis and aphthous stomatitis) is mandatory for the early diagnosis of intestinal Crohn's disease.

Medication-related osteonecrosis of the jaw: Surgical or non-surgical treatment?

Medication-related osteonecrosis of the jaw (MRONJ) is a severe side effect of antiresorptive (bisphosphonates and denosumab) and anti-angiogenic therapy used in the management of oncologic and, less frequently, osteoporotic patients. While there is good international agreement on the diagnostic and staging criteria of MRONJ and the cessation of antiresorptive/anti-angiogenic treatments, the gold standard of treatment is still controversial, in particular between non-surgical and surgical approaches. The former usually includes antiseptic mouth rinse, cyclic antibiotic therapy, low-level laser therapy and periodic dental checks; the latter consists of surgical necrotic bone removal. The purpose of this retrospective study was to describe the therapeutic approaches and outcomes of 131 lesions from 106 MRONJ patients treated at the Policlinic of Bari. Non-surgical treatments were chosen for 24 lesions that occurred in 21 patients who, due to comorbidities and/or the impossibility of stopping oncologic therapies, could not undergo surgical treatment. As to the outcome, all the surgically treated lesions (107) showed complete healing, with the exception of 13.5% of the lesions, all of which were stage III, which did not completely heal but showed reduction to stage I. The 24 non-surgically treated lesions never completely healed and, rather, generally remained stable. Only two cases exhibited a reduction in staging. Based on our observations, MRONJ occurring both in neoplastic and non-neoplastic patients benefits more from a surgical treatment approach, whenever deemed possible, as non-surgical treatments do not seem to allow complete healing of the lesions.

Odontogenic tumors: a retrospective clinicopathological study from two Italian centers.

OBJECTIVE: The aim of this retrospective study was to perform an epidemiological analysis of all odontogenic tumors treated in the University Hospitals "Ospedali Riuniti" in Ancona and "Policlinico" in Bari, from 1990 to 2015. MATERIALS AND METHODS: A retrospective survey of 277 patients treated for odontogenic tumors from 1990 to 2015 was performed. Data were retrieved from the archives of the above quoted Sections of Pathology. The lesions were classified according to 2005 WHO histological classification, and the following variables were analyzed: age, sex, histopathological diagnosis, site distribution, tumor size, and relapses. Peripheral odontogenic tumors were analyzed considering these lesions separately from their central counterparts. RESULTS: In a total of 344 surgical specimens, there were 277 primary tumors and 67 recurrences. As regards primary lesions, there were 185 odontogenic keratocysts (keratocystic odontogenic tumors) (66.8%), 49 ameloblastomas (17.7%), and 40 other benign odontogenic tumors (14.4%). As to malignant tumors, only 3 ameloblastic carcinomas were found (1.1%). The mean age was 46.7 years, with a M:F ratio of 1.8:1. The mandible was the most common site of localization, with 211 cases (76.2%). Also, 21 cases of peripheral odontogenic tumors were found, ameloblastomas being the most common (8 cases, 38.1%). CONCLUSIONS: There is a wide variety of cysts, some of which are subject to variations according to sex, localization, and age. Odontogenic tumors are rare neoplasms and appear to show variations according to sex, localization, and age, and may be useful to the clinicians who need to make clinical judgments before biopsy about the most probable diagnosis.

Diode laser treatment and clinical management of multiple oral lesions in patients with hereditary haemorrhagic telangiectasia.

Hereditary haemorrhagic telangiectasia (HHT) is rare, and characterised by vascular dysplasia that leads to various symptoms including visceral arteriovenous malformations and mucocutaneous telangiectatic lesions. Our aim was to describe the clinical features and options for the treatment of multiple oral lesions, and to illustrate the efficacy of the diode laser in the treatment of early (<2mm) and advanced lesions (2mm or more). We report 24 patients with 1200 oral telangiectatic lesions, which were often associated with regular bleeding (from monthly to daily), superinfection, pain, and swelling, and treated with multiple sessions of laser according to the number and size of the lesions. Early lesions were treated with a single laser impulse in ultrapulsed mode, and advanced lesions with repeated laser impulses in pulsed mode (t-on 200ms/t-off 500ms), at a power of 8W. Early lesions healed completely after laser photocoagulation with no operative or postoperative complications, while advanced lesions improved with a remarkable reduction in size but more discomfort. Protective occlusal plates were sometimes used to reduce the incidence of new lesions caused by dental trauma. The treatment of oral telangiectatic lesions is still being debated, and it is important to improve quality of life for patients. Diode laser surgery could be an effective treatment for oral lesions in those with hereditary haemorrhagic telangiectasia.

Tuberous sclerosis: histological analysis with confocal laser scanning microscope of gingival angiofibromatosis.

INTRODUCTION: Tuberous sclerosis (TS) is an autosomal dominant neuro-cutaneous syndrome characterized by multiple hamartomas in various organs, especially on skin and central nervous system. The most common features of TS include facial angiofibromas, hypomelanotic cutaneous macules, shagreen patches in the lumbar area, cerebral cortical tubers, sub-ependymal nodules, sub-ependymal giant cell astrocytomas, cardiac rhabdomyomas, and renal angiomyolipomas. Frequently oral manifestations such as fibrous hyperplasia, angiofibromas and dental enamel pitting are also observed. The aim of this case report was to describe the histological aspects of oral diffuse hyperplastic angiofibromatosis, never reported in the English literature and analyzed by Confocal Laser Scanning Microscope (CLSM), and to highlight the surgical implications of these aspects such as use of Diode Laser. CASE REPORT: A 14-years-old female patient with TS diagnosis came to our attention for diffuse gingival hyperplasia on the mandible. Clinical examination highlighted epidermal hamartomas on the whole body, especially on the face and scalp. Pathologic hyperplastic tissue was removed by pulsed diode laser at the power of 5-6W, and the surgical samples were sent for conventional and CLSM histopathological examination. After laser excision, wounds healed quickly without complications. At CLSM examination collagen fibres, showing intense fluorescence and with variable spatial orientation, and variably sized blood vessels were noticed suggesting the diagnosis of gingival angiofibromatosis, a still unreported finding in TS patients. CONCLUSIONS: CLSM analysis allows to highlight some unusual histopathological features of TS; diode laser is very effective for the treatment of gingival angiofibromatosis.