RESUMO
INTRODUCTION: Obstructive sleep apnea (OSA), caused by airway narrowing, is likely to occur if the mandibular plane to hyoid distance is greater than 15.4 mm and the posterior airway space (PAS) is less than 11 mm. OSA may be caused by mandibular deficit, bimaxillary retrusion, increased lower facial height, extended soft palate, a large tongue base, and a posteroinferiorly positioned hyoid bone. Snoring and drowsiness during exercise are symptoms of OSA, which is a risk factor for high blood pressure, heart disease, and stroke, and these can result in car crashes. However, orthognathic surgery can improve dental occlusion and aesthetics by adjusting facial bone position, shape, and size. When bones move, the position and tension of soft tissues change. These novel soft tissue interactions, especially when anteroposterior, change the face's appearance and PAS dimensions. This study uses barium sulfate paste to enhance lateral cephalograms before and after orthognathic surgery to assess posterior pharyngeal airway changes. MATERIALS AND METHODS: Barium sulfate was mixed with water to make a paste for the tongue's dorsum. A preoperative digital lateral cephalogram was obtained, and a postoperative evaluation was conducted six weeks after the procedure. In the cephalostat, the Frankfort horizontal and median planes were aligned parallel to the floor, and a radiograph was taken after the breathing cycle to standardize the hyoid bone location. Preoperative lateral cephalogram analysis using Burstone's hard tissue landmarks confirmed skeletal class II or III deformities. First, the narrowest part of the posterior pharyngeal airway was measured. Second, the narrowest portion between the soft palate and posterior pharyngeal wall parallel to the Frankfort horizontal plane was measured preoperatively, and the procedure was repeated six weeks postop. RESULTS: Complexity characterizes the pharyngeal airway, which, along with the surrounding structures, facilitates the bodily functions of eating, talking, and breathing. The pharyngeal airway is located behind the nose, mouth, and larynx, and adjusting the jaws changes the size and structure of the pharyngeal airway and surrounding soft tissues, which may affect breathing. A statistically significant change is detected in the posterior palatal and posterior lingual airways after different orthognathic operations. After the mandible is moved forward, both the posterior palatal and posterior lingual airways enlarge. Furthermore, the soft palate exhibits slight decreases in length, thickness, and angle. Additionally, there is an anterosuperior displacement of the hyoid bone. Following maxillary superior impaction, mandibular autorotation is seen in a counterclockwise direction, which has the same result as that of mandibular advancement. CONCLUSION: It is essential to consider these soft tissue changes when planning orthognathic procedures, as alterations in the pharyngeal airway may impact the patient's postoperative breathing and overall health. Patients with OSA or those at risk of developing it should be closely evaluated and managed appropriately during the surgical planning process.
RESUMO
Background and Aim: Pain management following tooth extraction is crucial in minimizing patient suffering and risk of infection and hastening the recovery. Safety issues with routinely prescribed drugs such as NSAIDs for pain management call for search of an effective and safe alternative. Advances in the field of alternative medicine have led to the use of various natural products for pain management in the field of dentistry. The aim of the study was to compare the efficacy between the analdent and aceclofenac in terms of alleviation of post-operative pain and facial swelling after extraction of tooth. Methods: A split-mouth randomized clinical trial was conducted on 22 participants in the age range of 13-25 years requiring extraction of first permanent premolars for orthodontic reason. The extraction sites were randomized to receive either analdent or aceclofenac post-orthodontic extraction. Post-extraction dental pain was assessed after 8 h, 24 h, 48 h and 72 h post-operatively using a visual analog scale, and incidence of swelling was recorded. Results: Pain score showed a significant reduction (p = 0.001) post-operatively within analdent (herbal drug) group as well as Zerodol (aceclofenac) group. However, there was no significant difference in pain intensity between the two groups at each interval. Two participants in analdent group and one participant in aceclofenac group reported swelling after 8 h of extraction which subsided after cold pack application. Conclusion: Analdent was found to be equally effective as aceclofenac in managing pain after the tooth extraction with relatively no side effects.CTRI Registration Number: CTRI/2020/ 03/024296 dated 27/03/2020.
