Effectiveness of pre-injection use of cryoanesthesia as compared to topical anesthetic gel in reducing pain perception during palatal injections: a randomized controlled trial.

Background: Palatal injections are often painful. We aimed to compare topical ice and 20% benzocaine gel for pre-injection anesthesia before greater palatine nerve block (GPNB) injections. Methods: A randomized split-mouth clinical trial was conducted among patients aged 15-60-years needing bilateral GPNB injections. A total of 120 palatal sites from 60 patients were randomly allocated to Group A (topical ice) or Group B (20% benzocaine gel). Pain was evaluated using sound, eye, motor (SEM), and the visual analog scale (VAS) in both groups. Inferential analysis was performed using the Mann-Whitney U test. Results: The mean age of the participants was 20.5 ± 3.9 years. The median VAS score for group A was 11 (Q1 - Q3: 5.25 - 21.75), which was slightly higher than the 10 (Q1 - Q3: 4.0 - 26.75) reported in group B. However, the difference was not statistically significant (P = 0.955). The median SEM score for group A and group B was 3.5 (Q1 - Q3: 3.0 - 4.0) and 4.0 (Q1 - Q3: 3.0 - 4.0), respectively, which was statistically insignificant (P = 0.869). Conclusion: Using ice as a form of topical anesthetic for achieving pre-injection anesthesia before GPNB was as effective as 20% benzocaine gel.

Investigating UAV-Based Applications in Indoor-Outdoor Sports Stadiums and Open-Air Gatherings for Different Interference Conditions beyond 5G Networks.

With the onset of 5G technology, the number of users is increasing drastically. These increased numbers of users demand better service on the network. This study examines the millimeter wave bands working frequencies. Working in the millimeter wave band has the disadvantage of interference. This study aims to analyze the impact of different interference conditions on unmanned aerial vehicle use scenarios, such as open-air gatherings and indoor-outdoor sports stadiums. Performance analysis was carried out in terms of received power and path loss readings.

Congenital granular cell tumor: Report of a case with literature review and differential diagnosis.

Congenital granular cell tumor (CGCT) is a rare benign lesion and presents as a fibrous mass arising from the alveolus in the newborn. The prenatal screening of lesions can help in parent counseling, determining the complications, as larger size lesions may interfere with normal delivery and require a cesarean section.

Intra-operative application of ultrasonography (USG) for reduction of zygomatic arch fracture.

Zygomatic arch fractures are the most common facial fractures or second in frequency after the nasal fractures. The high incidence of zygomatic fractures probably relates to its prominent position in the facial skeleton; hence, it is frequently exposed to fractures. This case report presents an left-sided isolated zygomatic arch fracture after subjected to routine investigations and radiographs like submentovertex and CT scans. The patient was operated under general anesthesia for the reduction of zygomatic arch by Gille's temporal approach with the use of Ultrasound intra-operatively. Recommendation for the use of ultrasonography in the identification of zygomatic arch fractures intra-operatively operatively.

Practice of Oral and Maxillofacial Surgery in Nepal: Its Scope and Influencing Factor.

OBJECTIVES: Oral and maxillofacial surgery is a relatively newer and growing specialty of dentistry in Nepal whose scope is not yet estimated. The objective of this study was to estimate the scope and the factors influencing the scope of oral and maxillofacial surgery in Nepal. STUDY DESIGN: In this cross-sectional study, all the oral and maxillofacial surgeons who were registered in the Nepalese Association of Oral and Maxillofacial Surgeons (NAOMS) were included (purposive sampling). The structured questionnaires were distributed to them, the collected data were entered in Microsoft excel 2010, and variables were analyzed using descriptive statistics (percentage) by SPSS 16.0. RESULTS: Out of 46 questionnaires distributed, 35 were responded and returned (response rate = 76%). Majority of participants (77.1%) were in 30-39 years of age group. Male to female ratio was 4 : 1. More than half (68.6%) of the participants had practice experience of <5 years, and none had practice experience of >20 years. The ratio of the surgeons practiced in Medical/Dental Teaching Hospital to those in Government Hospital was 3 : 1. Sixteen (45.7%) participants practiced in Capital Valley and none in Far-Western Development Region. Traumatology was practiced by thirty-four (97.1%) participants although only twenty-three (65.7%) participants had primary interest in it. Each of oncology, orthognathic surgery, implantology, and cleft lip/palate surgery was performed by <8% of the participants. Common factors influencing the practice were inadequate training (71.4%) and insufficient facilities/infrastructures (45.7%). CONCLUSION: The scope of oral and maxillofacial surgery is limited in Nepal, and oncology, implantology, cleft lip/palate, and orthognathic surgery have received little attention.

Dentigerous Cystic Changes in the Follicles Associated with Radiographically Normal Impacted Mandibular Third Molars.

OBJECTIVE: To assess the incidence of dentigerous cystic changes in the follicles of radiographically normal impacted mandibular third molars. METHODS: One hundred and thirteen follicles obtained after surgical removal of impacted mandibular third molars with radiolucency of less than 2.5 mm in the radiograph were sent for histopathologic evaluation to evaluate pathologic changes. RESULTS: The incidence of dentigerous cystic changes observed was 15.9%, that is, 18 out of 113 patients (51 males and 62 females), with the maximum incidence of cystic changes seen in the follicular space size of 0.5 mm. The mean age of the patients included was 27.8 ± 8.1. The most common indication for extraction among the patients in this study was recurrent pericoronitis (95%). There were no statistically significant differences in occurrence of cystic changes based on age, gender, angulation, relation to ramus, depth, side of impaction, and follicle size (P > 0.05). CONCLUSION: Dental follicles obtained from surgically removed impacted mandibular third molars should be submitted for histopathologic examination irrespective of the radiographic size of the follicle.

Animal Inflicted Maxillofacial Injuries: Treatment Modalities and Our Experience.

INTRODUCTION: Animal inflicted injuries to the face and neck are becoming much more common as people lavish affection on pets. Injuries caused by animal attacks to the face can cause complex injuries to soft and hard tissues, presented as perforations, lacerations, crushes, avulsion or fractures. An uncountable number of bacteria and virus can be found in such injuries, with a potential pathological effect to humans, regarding infections. Although the infection rate is low due to excellent blood supply to face, the injuries have disfiguring effect with possible psychological repercussion to the patients. The treatment of animal inflicted injuries must address the soft tissue defect, neurovascular injuries, and bone injuries as well as prevention of post treatment infection. Primary wound repair is the treatment of choice for most clinically uninfected bite wound where as delayed closure should be reserved for wounds at high risk of infection or already infected wounds and tissue defect may require local flap or micro-vascular re-implantations. MATERIAL AND METHODS: In this article, we have elicited up to date considerations regarding the management of animal inflicted injuries to the face based on literature search and exemplified by multiple case reports. CONCLUSION: For bite injuries on face, immediate primary wound repair after meticulous wound debridement and irrigation with sufficient volume added by antibiotic prophylaxis gives good cosmetic results with minimum risk of infection. Depending upon type of attack and age of victims, psychiatric or social counseling may also be required.