Severity of Soft Tissue Injury Within the Temporomandibular Joint Following Condylar Fracture as Seen on Magnetic Resonance Imaging and Its Impact on Outcome of Functional Management.

PURPOSE: This study aimed to quantify articular soft tissue injury in condylar fractures based on magnetic resonance imaging (MRI) findings and investigate the impact of severity of articular soft tissue injury on the development of postoperative complications after functional reduction of a condylar fracture. PATIENTS AND METHODS: Fifty-four patients 18 to 60 years old with unilateral undisplaced, deviated, or displaced condylar fractures were included in this prospective study. Articular soft tissue within the temporomandibular joint (TMJ) was evaluated using MRI within 7 days after the condylar fracture. Based on MRI findings, such injuries were classified as grade I (hemarthrosis only), grade II (hemarthrosis and disc displacement), grade III (hemarthrosis, disc displacement, and capsular tear), or grade IV (disc perforation in association with grade I, II, or III). All condylar fractures were treated conservatively using a standardized functional reduction method and patients were followed for 1 year. RESULTS: In 37 of 54 TMJs, MRI diagnosis of disc displacement was established, and capsular tear was observed in 12 joints and hemarthrosis was present in 42 joints. Disc perforation was present in only 5 cases. Patients with hemarthrosis alone (grade I) had the best outcome after functional reduction, whereas patients with hemarthrosis and disc displacement (grade II) had comparatively poorer results. Fifty percent of patients with grade II injury and 66.6% of patients with associated capsular tear (grade III) had limited mouth opening and restricted movement at the end of the follow-up period. One hundred percent of patients with disc perforation (grade IV) had restricted joint movement and joint noise. CONCLUSION: Results suggest that serious injury to the articular disc and capsule of the TMJ is a major contributing factor toward the development of complications after closed reduction of a condylar fracture.

Locally Advanced oral Squamous cell Carcinomas: Auditing and Outcome Appraisal.

Introduction: Patients with OSCC in India (oral squamous cell carcinoma) presents at a later stage with approximately 28% presenting at stage III and 64% at stage IV disease. In this retrospective study we have reviewed the treatment modalities rendered and outcomes associated for the management of locally advanced oral squamous cell carcinoma in our Institute. We evaluated the survival data and the factors effecting survival. Methods: Kaplan Meir method was used to evaluate OS and DFS rate and log rank test was used to compare the survival amongst groups. Cox regression analysis (univariate and multivariate) was used to evaluate the hazard ratio to find out the possible factors influencing risk of death and disease. Results: The median OS and DFS in our study were 32 and 24 months respectively. On a subset analysis of only T4b patients who underwent either upfront surgery or induction chemotherapy followed by surgery there was no significant difference in OS and DFS. All patients with TURD had partial response after induction chemotherapy and were subjected to surgical resection followed by adjuvant therapy. Conclusion: Extracapsular spread, bone involvement, skin infiltration, treatments, surgical margins and Lymph node size are the prime predictors of survival.Upfront surgery remains the standard of care for resectable LAOSCC. Induction chemotherapy might improve the resectability in technically unresectable OSCC. There is no difference in survival between concurrent chemoradiation, sequential chemoradiation and radical radiotherapy in the management of unresectable disease. Supplementary Information: The online version contains supplementary material available at 10.1007/s12070-023-04168-4.

Electromyographic Assessment of Masticatory Muscles & their Asymmetries in Adult Indian Population.

Objective: To study the surface electromyography (sEMG) and it is asymmetry under resting and dynamic conditions in masticatory muscles. Materials and Methods: sEMG of the masticatory muscles (bilateral masseter & temporalis) was done in 61 healthy subjects (mean age 28.5 ± 8.8 years) with bilateral functional molar occlusal relationship. Root mean square (RMS) values sEMG for each activity (rest, clenching, maximum mouth opening (MMO), left and right excursion) for a 10 s period were recorded and analyzed. Indices for asymmetry of muscles, relative activity and resultant torque were assessed and analyzed. Results: RMS values of sEMG during clenching were significantly higher for all masticatory muscles in males compared to females (p < 0.05). During excursive mandibular movement a statistically significant difference seen in ipsilateral temporalis muscle in males. sEMG of masticatory muscles during rest as well as functional activities of mandible was asymmetrical. A predominant masseteric activity was observed for all functional activities of mandible except during rest for which temporalis muscle activity was higher. Right sided torque was observed during rest, MMO and right lateral movements while a predominant left sided torque was present during left lateral movement and clenching. Conclusion: sEMG values of masticatory muscles obtained in our study can be used as reference for healthy Indian population. A perfect muscular symmetry might be illusive and a controlled asymmetry criterion appears to be more useful which corresponds to reality.

Survival Outcomes and Factors Affecting Survival in Resectable Locally Advanced Oral Squamous Cell Carcinoma.

Management of locally advanced OSCC include primary surgery followed by adjuvant radiotherapy or chemo radiation, concurrent chemo radiation, induction chemotherapy followed by surgery or non surgical methods. In resectable disease the role of induction chemotherapy is questionable and surgery remains the first choice. In this study we aimed at evaluating the survival and factors effecting survival in locally advanced oral cancer. retrospective review of patient records was made. Kaplan Meir method was used to evaluate OS and DFS rate and log rank test was used to compare the survival amongst groups. Cox regression analysis (univariate and multivariate) was used to evaluate the hazard ratio to find out the possible factors influencing risk of death and disease. The 3 year OS of the entire cohort was 56.80% and 3 year DFS was 52.4%. ECS, surgical margin, PNI, LVI and LN size were independent risk factors for poor overall and disease free survival. We identified ECS, positive margin, LVI, PNI and LN size as independent risk factors effecting survival. These factors justify the use of adjuvant radiotherapy or chemo radiation according to the already available guidelines.

An Analysis of Xpert Test for Diagnosing Maxillofacial Tuberculosis.

Background: Maxillofacial tuberculosis is a diagnostic challenge for surgeons. The aim of this study was to present a detailed analysis of Xpert test in diagnosing maxillofacial tuberculosis and to analyse the accuracy of Xpert test results for various tissues of maxillofacial region. Materials and Methods: In this cross-sectional study, patients were selected randomly from outpatient department. The patients who had clinical picture and differential diagnosis highly suggestive of maxillofacial tuberculosis were included. Patients were divided into three different groups depending upon the site of involvement. The samples collected from the patients were further subdivided depending upon the type of specimen. Patients were screened first by routine tests, and the negative cases were followed by Xpert test for tuberculosis. Results: A total of 54 patients were enrolled in the study, 13 patients were found to be positive for maxillofacial tuberculosis on routine screening tests for tuberculosis, and 41 tested negative on routine test and were evaluated further through Xpert test. Specimens from bone (n12), soft tissue and skin biopsy (n15) and aspirates from lymph nodes (n14) were obtained and tested. Twenty-one samples were found to be positive, and 20 were negative upon Xpert testing. There was a statistically significant difference seen between the test groups (p < 0.01) with higher frequency of negative results in routine test. The p value for various specimens containing pus, biopsies and aspirates was 0.045, 0.023 and 0.067, respectively. Conclusion: Xpert test is more accurate when compared to routine test for diagnosing maxillofacial tuberculosis. Although accuracy of Xpert test is better for pus and biopsy samples in the specimens from bone and soft tissue, it gives poor accuracy for aspirated cells. The aspirates from lymph nodes were more susceptible for false negative test.

Comparative Evaluation of Nasolabial Flap, Buccal Fat Pad and Platysma Myocutaneous Flap for Reconstruction of Oral Sub Mucous Fibrosis Defects.

Moderately advanced (stage III) and advanced (stage IV a & b) OSMF requires surgical intervention for management A number of options are available for reconstruction of post OSMF oral cavity defects. In our study we retrospectively compared buccal fat pad, nasolabial flap and platysma flap for reconstruction of the buccal mucosal defects. Patient records were obtained from the medical records section of the Institute and divided into three groups; group A (buccal fat pad), group B (nasolabial group) and group C (platysma flap). Maximal mouth opening and intercommisural distance were the primary outcomes. Kruskal Wallis test was used to test the mean difference between three groups. Mann-Whitney test was used for intergroup comparisons. Wilcoxon signed rank test was used to evaluate the mean difference in outcomes at each follow up interval. A p value of < 0.05 was considered as statistically significant at 95% confidence interval. After 1 year follow up patients in platysma group had significantly better mouth opening (39.84 ± 1.65 mm) compared to both buccal fat pad (36.69 ± 3.41 mm) and nasolabial groups (37.94 ± 0.43 mm). Inter commisural distance was significantly better in patients reconstructed with platysma flap (59.21 ± 0.99 mm) compared to both buccal fat pad (54.11 ± 1 mm) and nasolabial flap (56.84 ± 1.48 mm). Platysma flap lead to significantly better maximal mouth opening compared to both nasolabial and buccal fat pad. Both buccal fat pad and nasolabial lead to comparable mouth opening. Inter commissural distance is maximum with platysma flap followed by nasolabial flap and buccal fat pad.

Correlation between IL-7 and MCP-1 in diabetic chronic non healing ulcer patients at higher risk of coronary artery disease.

Cytokines play an extremely important role in the pathogenesis of coronary artery disease (CAD) in which interleukin (IL)-7 is a major regulator of T-cell homeostasis which is conced in the stimulation of leukocyte-endothelial cell adhesion during inflammatory events. Circulating IL-7 is associated with activation of monocyte and natural killer cells, leading to enhanced production of inflammatory cytokines and chemokines observed in atherosclerosis and acute coronary syndromes. Plasma levels of IL-7, hs-CRP and monocyte chemoattractant protein (MCP)-1 were measured by an immunoenzymatic ELISA technique. Ninety neuropathic diabetic foot patients were divided into two groups: group B [those without CAD (n=45)] and group C [those with higher risk of CAD (n=45)]. Thirty-five healthy subjects were included as control (group H). Plasma concentration of IL-7, MCP-1 and hs-CRP were significantly higher in group C as compare with group H and B. Plasma IL-7 levels also showed significant positive correlations with plasma levels of hs-CRP and MCP-1. Abnormalities in lipid profile were also observed. In conclusion the positive correlation between plasma concentration of IL-7, MCP-1 and hs-CRP in diabetic foot patients observed herein, suggests a plausible role for IL-7 in the promotion of clinical instability in coronary artery disease.

Magnetic resonance imaging evaluation of temporomandibular joint and associated soft tissue changes following acute condylar injury.

PURPOSE: This study evaluated the role of magnetic resonance imaging (MRI) in cases of acute condylar injury and assessed soft tissue damage such as disc displacement, capsular tear, and hemarthrosis within the temporomandibular joint (TMJ). PATIENTS AND METHODS: This prospective study was conducted in 15 patients who presented with unilateral or bilateral condylar fracture or contusion with a unilateral or bilateral diagnosis of TMJ sprain/strain. Patients with trauma of less than 7 days previously with a unilateral or bilateral condylar fracture or contusion with a diagnosis of TMJ sprain/strain were included in the present study. The clinical diagnosis of TMJ sprain was made and further classified and graded according to the severity and type of injury. On confirmation of the diagnosis of condylar injury, patients underwent evaluation by MRI. All patients were treated by closed reduction of the condylar fracture and intermaxillary fixation for 14 to 21 days. RESULTS: Of the 15 patients, 5 were children and 10 were adults. Of all 17 TMJ cases (2 bilateral, 13 unilateral), 2 condylar fractures were of the high variety and 13 were of the low variety. MRI diagnosis of disc displacement was established in 8 of 17 TMJ cases. There was a significant association between degrees of condylar injury and the MRI diagnosis of displaced disc and hemarthrosis. However, an MRI finding of capsular tear was not significantly associated with the degree of condylar injury. CONCLUSIONS: Soft tissue changes of the TMJ can be predicted accurately by MRI and are in direct proportion to the severity of the condylar injury of the mandible. Among the soft tissue changes, disc displacement and hemarthrosis seem to affect the outcome of functional treatment.

Influence of Site, Size, Depth of Invasion and Histologic Grading on the Occurrence of Cervical Level IIb Metastasis and Extranodal Extension in Clinically N0 Neck of Patients with OSCC: A Single Center Retrospective Analysis.

Background: Depth of Invasion ≥ 4 mm, T stage and primary site with more than 20% chances for occult metastasis are currently the accepted indications for elective neck dissection. Nodal metastasis decreases survival by 50%. ENE further reduces the prognosis. Dissection of level IIb lymph nodes in clinically N0 neck does not improve survival. Methods: A total of 320 patients were evaluated. Binary and multiple logistic regression and chi-square test were used for data analysis. ROC curve with Youden's J index was used to set up a cutoff value for DOI. The predictor variables were site, size, grading and depth of invasion of primary tumor. Incidence of level IIb metastasis and ENE were the outcomes. Results: The study revealed a significant association and risk stratification between primary tumor characteristics with the occurrence of ENE. The cutoff value for DOI predicting ENE was 12.5 mm. Tumors of the oral tongue were an independent risk factor for level IIb metastasis. Discussion: Size of primary tumor, DOI, tumors of the mandibular alveolus and poor grading are independent risk factors for ENE. Isolated metastasis to level IIb rarely occurs in the absence of concomitant level IIa metastasis. Size, DOI and grading were significantly associated with level IIb metastasis. However, only tumors of the oral tongue were independent risk factor.

Implant survival in patients with neuropsychiatric, neurocognitive, and neurodegenerative disorders: A meta-analysis.

Neurologic disorders impede oral hygiene measures and routine clinical follow-up, along with the various drugs used may jeopardise oral health and the peri- implant tissue health. A total of 7 studies were considered eligible for the current systematic review. The overall estimated effect was categorized as significant where P < 0.05. Funnel plot was used to assess the publication bias within the studies. Difference in means was used as principal summary measure. P value <0.05 was considered as statistically significant. 1069 implants survived in test group and 4677 implants survived in control group (odds ratio: 2.58, 95% CI: 1.93-3.43) indicating significant success in patient without any disorders or taking medications for these disorders. Subgroup analysis was done to check the implant survival rate in patients taking selective serotonin reuptake inhibitors (SSRI) compared with SSRI non-users. Subgroup analysis showed that SSRI non-users had higher implant survival rate than patients taking SSRI (odds ratio: 2.45, 95% CI: 1.82-3.31). Serotonin significantly inhibits bone mineralization and osteoblast differentiation. The presence of any form of neuropsychiatric or neuromuscular disorders precludes proper oral hygiene and may contribute towards implant failure.

New Approach in the Management of Vertical Root Fracture with the Help of Biodentine and CBCT.

INTRODUCTION: Vertical root fracture is a big challenge to dentists for its diagnosis and treatment. As the tooth presents poor prognosis, the most common treatment modality is extraction. One can save the tooth from extraction by the reconstruction of fracture fragments followed by intentional reimplantation. New treatment options have arrived for healing of the fracture site by hard tissue barrier formation with the help of bioceramic materials. Case Report. The present case report describes successful management of complete vertical root fracture of a maxillary left central incisor by trauma in a 35-year-old male with the help of Biodentine, a bonding agent, a fiber post, and dual-cure resin cement without tooth extraction, followed by all ceramic crowns. Up to two years of follow-up, there is no problem in the tooth, and radiographically, there is no radiolucency along the fracture line. Periodontal status and probing depth were within a normal physiological limit. CONCLUSION: Functional and aesthetic outcomes are achieved by combined therapy in the present case report.

Treatment of cystic lesion of mandible using combination of modified bone granules and calcium phosphate bone cement: A preliminary report.

AIMS: This study was conducted to evaluate healing of bony cavity in mandible following enucleation of cystic lesion by obliterating the cavity using modified natural bone granules (G Graft) and calcium phosphate bone cement (G Bone). MATERIALS AND METHOD: In this technique, after enucleation of cystic lesion, peripheral ostectomy using No. 702 fissure bur and perforation of the inferior cortex using 1.5 mm drill bits were performed. Modified hydroxyapatite granules were used to fill the defect while calcium hydroxide bone cement was used to seal the cavity opening. Thirty-seven patients were treated using this technique. In 30 patients, quality and quantity of bone were within acceptable limits, and in 7 patients, there was extrusion of graft material and post-operative infection. CONCLUSION: Treatment of cystic lesion of mandible using combination of modified bone granules and calcium phosphate cement is good alternative to other treatment methods. Long-term and comparative studies are required to evaluate its advantage over the other methods of treatment.

Estimation of gingival crevicular blood glucose level for the screening of diabetes mellitus: A simple yet reliable method.

AIM: This study was designed to assess the reliability of blood glucose level estimation in gingival crevicular blood(GCB) for screening diabetes mellitus. MATERIALS AND METHOD: 70 patients were included in study. A randomized, double-blind clinical trial was performed. Among these, 39 patients were diabetic (including 4 patients who were diagnosed during the study) and rest 31 patients were non-diabetic. GCB obtained during routine periodontal examination was analyzed by glucometer to know blood glucose level. The same patient underwent for finger stick blood (FSB) glucose level estimation with glucometer and venous blood (VB) glucose level with standardized laboratory method as per American Diabetes Association Guidelines.1 All the three blood glucose levels were compared. Periodontal parameters were also recorded including gingival index (GI) and probing pocket depth (PPD). RESULTS: A strong positive correlation (r) was observed between glucose levels of GCB with FSB and VB with the values of 0.986 and 0.972 in diabetic group and 0.820 and 0.721 in non-diabetic group. As well, the mean values of GI and PPD were more in diabetic group than non-diabetic group with the statistically significant difference (p < 0.005). CONCLUSION: GCB can be reliably used to measure the blood glucose level as the values were closest to glucose levels estimated by VB. The technique is safe, easy to perform and non-invasive to the patient and can increase the frequency of diagnosing diabetes during routine periodontal therapy.

Recent advances on the association of apoptosis in chronic non healing diabetic wound.

Generally, wounds are of two categories, such as chronic and acute. Chronic wounds takes time to heal when compared to the acute wounds. Chronic wounds include vasculitis, non healing ulcer, pyoderma gangrenosum, and diseases that cause ischemia. Chronic wounds are rapidly increasing among the elderly population with dysfunctional valves in their lower extremity deep veins, ulcer, neuropathic foot and pressure ulcers. The process of the healing of wounds has several steps with the involvement of immune cells and several other cell types. There are many evidences supporting the hypothesis that apoptosis of immune cells is involved in the wound healing process by ending inflammatory condition. It is also involved in the resolution of various phases of tissue repair. During final steps of wound healing most of the endothelial cells, macrophages and myofibroblasts undergo apoptosis or exit from the wound, leaving a mass that contains few cells and consists mostly of collagen and other extracellular matrix proteins to provide strength to the healing tissue. This review discusses the various phases of wound healing both in the chronic and acute wounds especially during diabetes mellitus and thus support the hypothesis that the oxidative stress, apoptosis, connexins and other molecules involved in the regulation of chronic wound healing in diabetes mellitus and gives proper understanding of the mechanisms controlling apoptosis and tissue repair during diabetes and may eventually develop therapeutic modalities to fasten the healing process in diabetic patients.

Oral mucosal involvement in visceral leishmaniasis.

Leishmaniasis affects both the visceral and cutaneous tissues in body. Oral Mucosal involvement in leishmaniasis is rare and is often overlooked. We present a case 17 year old boy from the north east region of Bihar who has a history of visceral leishmaniasis one year back, came to the department of oral surgery for treatment of persistent oral ulcers. Oral examination did not give any diagnostic information while systemic examination revealed enlarged spleen and low grade fever. Patient was screened for leishmaniasis by rK39 based immunochromatographic strip test which came to be positive. Biopsy of the ulcer as well as splenic and bone marrow aspirate confirmed the presence of leishmaniasis. Patient was administered Amphotericin B for 20 days following which significant clinical and haematological improvement followed.