Cervicofacial Subcutaneous Emphysema by High Speed Air Turbine: A Case Report

2015 ◽  
Vol 119 (3) ◽  
pp. e143-e144
Author(s):  
Muhammet Midilli ◽  
Aydan Acikgoz ◽  
Zeynep Zengin ◽  
Emel Bulut
Keyword(s):  
Case Report ◽  
Subcutaneous Emphysema ◽  
High Speed ◽  
Air Turbine

scholarly journals Management of Air Emphysema with Cyanosis Following Dental Treatment - A Case Report with Scientific Reasoning

2021 ◽  
Vol 10 (37) ◽  
pp. 3306-3309
Author(s):  
Nafeesa Tabassum ◽  
Fatema Akhter ◽  
Ghada Alfirm ◽  
Yara Alhumaidan ◽  
Tahsinul Haque
Keyword(s):  
Case Report ◽  
Subcutaneous Emphysema ◽  
Scientific Reasoning ◽  
High Speed ◽  
Dental Treatment ◽  
Third Molar ◽  
Dental Procedures ◽  
Surgical Extraction ◽  
Hand Piece ◽  
Maxillary Molar

Air emphysema as a consequence of dental procedures is a rare but dangerous state if not diagnosed and treated timely. It can occur incidentally or iatrogenically in many dental procedures such as restorations, endodontic and periodontal treatments, surgical and non-surgical tooth extraction, and use of air or water sprays and syringes.1-6 Subcutaneous emphysema of dental origin most commonly occurs after surgical extraction of an impacted mandibular third molar.7 Several studies have reported that the use of high speed hand-piece during surgical extraction led to escape of air into the subcutaneous tissues. 7-10 Wilson (1983) reported subcutaneous emphysema in the eyelids after extraction of the maxillary molar teeth due to vigorous irrigation combined with air and water spray for 10 seconds.6 Subcutaneous emphysema in the cheek after extraction of the maxillary third molar without using high speed hand-piece is not a common phenomenon. In the present case, we demonstrate air emphysema in the cheek associated with hematoma after extraction of the impacted right maxillary 3rd molar. Since it was a soft tissue impaction, no hand-piece was used during the tooth removal. The purpose of this case report is to create awareness among the dental surgeons about the simple extraction procedures that may lead to air emphysema associated with hematoma.

scholarly journals Subcutaneous emphysema after treatment using air-abrasive device: a case report

2016 ◽  
Vol 19 (3) ◽  
pp. 106
Author(s):  
Marcelo Bighetti Toniollo ◽  
Andrea Sayuri Silveira Dias Terada ◽  
Marco Aurelio Kenichi Yamaji
Keyword(s):  
Case Report ◽  
Surgical Procedures ◽  
Subcutaneous Emphysema ◽  
High Speed ◽  
Soft Tissues ◽  
Etiological Factor ◽  
Volumetric Change ◽  
Anatomical Structures ◽  
Present Case Report

<p>Subcutaneous emphysema is an event often generated by iatrogenic reason, caused by improper dissection of air into soft tissues and/or anatomical structures, causing edema and visually noticeable volumetric change in the area of the incident. The main etiological factor for this is the use of equipment such as syringe air or high-speed handpieces in surgical procedures of greater magnitude; however, subcutaneous emphysema may also occur in simple procedures, such as occurred in the present case report, using the air-abrasive device usually proper for prophylaxis execution. The aim of this article is to report the case and to describe the care to avoid such an event, describing proper procedures for the correct resolution of the case, as well as alert the professional of the risks and necessary precautions.</p>

scholarly journals Extensive subcutaneous emphysema after exodonty of molar third parties: Case report

2021 ◽  
Vol 10 (4) ◽  
pp. e37310414311
Author(s):  
Aída Juliane Ferreira dos Santos ◽  
Carolina Chaves Gama Aires ◽  
Eugênia Leal de Figueiredo ◽  
Belmiro Cavalcanti do Egito Vasconcelos
Keyword(s):  
Differential Diagnosis ◽  
Case Report ◽  
Subcutaneous Emphysema ◽  
High Speed ◽  
Pain Treatment ◽  
Correct Diagnosis ◽  
Maxillofacial Surgery ◽  
Third Molar ◽  
Oral And Maxillofacial Surgery ◽  
Air Jet

Introduction: Subcutaneous emphysema is an accident where the forced introduction of air into the tissues occurs, which in dentistry can appear after the use of a high-speed pen or triple syringe. The swelling associated with emphysema can be mistaken for bruising, allergies or infections. The differential diagnosis is often related to the presence of crackles on palpation, associated or not, with pain. Treatment is prophylactic and palliative, since the problem tends to resolve spontaneously. Objective: To report a clinical case of subcutaneous emphysema and extraction of third molars, discussing the importance of differential diagnosis to guide the treatment of this complication. Case report: A 22-year-old female patient attended the oral and maxillofacial surgery service of a public hospital in Recife-PE, complaining of pain in the lower left third molar region. During the surgical procedure, it was necessary to use a high-speed pen to perform osteotomy and odontosection of tooth 38. At the end of the surgery, there was an increase in volume in the left periorbital region, compatible with subcutaneous emphysema. After 7 days postoperatively, spontaneous resolution of emphysema was observed. Discussion: According to the current literature, after the emphysema is already under a dermal layer, the air may remain at the surgery site or continue to spread along the facial spaces, depending on the permanence of the air jet. Conclusion: The correct diagnosis of subcutaneous emphysema was effective in ruling out other complications, guiding the management of the reported case, in addition to preventing the emphysema from evolving to an infection involving the cervicofacial or thoracic region.

scholarly journals Research on aerodynamic characteristics of two-stage axial micro air turbine spindle for small parts machining

2020 ◽  
Vol 12 (12) ◽  
pp. 168781402098437
Author(s):  
Liu Jiang ◽  
Guo Zhiping ◽  
Miao Shujing ◽  
He Xiangxin ◽  
Zhu Xinyu
Keyword(s):  
High Speed ◽  
Aerodynamic Characteristics ◽  
Maximum Efficiency ◽  
Two Stage ◽  
Output Torque ◽  
Air Turbine ◽  
Solid Foundation ◽  
Computational Fluid Dynamics Cfd ◽  
Micro Machine ◽  
Small Parts

In order to meet the requirements of output torque, efficiency and compact shape of micro-spindles for small parts machining, a two-stage axial micro air turbine spindle with an axial inlet and outlet is proposed. Based on the k-ω turbulence model of SST, the flow field and operation characteristics of the two-stage axial micro air turbine spindle were studied using computational fluid dynamics (CFD) combined with an experimental study. We obtained the air turbine spindle under different working conditions of the loss and torque characteristics. When the inlet pressure was 300 KPa, the output speed of the two-stage turbine was 100,000 rpm, 9% higher than that of a single-stage turbine output torque. The total torque reached 6.39 N·mm, and the maximum efficiency of the turbine and the spindle were 42.2% and 32.3%, respectively. Through the research on the innovative structure of the two-stage axial micro air turbine spindle, the overall performance of the principle prototype has been significantly improved and the problems of insufficient output torque and low working efficiency in high-speed micro-machining can be solved practically, which laid a solid foundation for improving the machining efficiency of small parts and reducing the size of micro machine tool.

Cervicofacial Emphysema Secondary to Facebow Injury: A Case Report

2009 ◽  
Vol 33 (4) ◽  
pp. 333-336
Author(s):  
Marco Cicciù ◽  
Giovanni Battista Grossi ◽  
Mario Beretta ◽  
Davide Farronato ◽  
Concetta Scalfaro ◽  
...  
Keyword(s):  
Case Report ◽  
Soft Tissue ◽  
Subcutaneous Emphysema ◽  
Clinical Case ◽  
Dental Procedure ◽  
Life Threatening ◽  
Facial Area ◽  
Orthodontic Device ◽  
Physical Findings

Aim: To report the clinical case of a child with facial and periorbital emphysema caused by an orthodontic device. Case report: An 11-year-old child presented to our clinic showing moderate swelling of the left facial area. Based on his dental history, physical findings, and instrument examinations, the diagnosis of cervicofacial emphysema was established, caused by disengagement of the facebow. One week later, all swelling and crepitus had disappeared without complications. Most patients who develop subcutaneous emphysema after a dental procedure have only moderate local swelling, which normally resolves spontaneously and without complications within a week. However, the spread of large amounts of air into the deeper spaces may cause life-threatening sequelae. Conclusions: Orthodontists should be aware that the use of extraoral traction applied via a facebow can cause soft tissue injures and emphysema of the cervicofacial region. It is important to avoid misdiagnosis and to appropriately inform patient and parents about this condition.

Recovery of high speed memory scanning after transient global amnesia: A case report

1996 ◽  
Vol 50 (6) ◽  
pp. 317-321
Author(s):  
MASAO OKURA ◽  
MASAHITO TOMOTAKE ◽  
KEIJIRO MORI ◽  
TAKUMI IKUTA
Keyword(s):  
Case Report ◽  
High Speed ◽  
Transient Global Amnesia ◽  
Memory Scanning ◽  
Global Amnesia
Sign in / Sign up

Export Citation Format

Share Document