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Orbicularis Oris

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21. A surgical and anatomo-histological study on Transoral Endoscopic Thyroidectomy Vestibular Approach (TOETVA). (PubMed)

with dissections.Mimetic muscles associated with median (MT) and lateral trocars (LT) are orbicularis oris, mentalis, depressor anguli oris, depressor labii inferioris and platysma muscles. Trocars affect mimetic muscles in the perioral, chin and submental regions in different ways. The risk of mental nerve injury by MT is low. LT pass through the DLI muscle. The transmission of LT to the subplatysmal plane in the submental regions can be in two different ways. The arterial injury risk is higher with LT than

2019 Surgical endoscopy

22. Philtrum reconstruction in unilateral cleft lip repair. (PubMed)

Philtrum reconstruction in unilateral cleft lip repair. The philtrum is an important aesthetic structure in the midface. A number of philtrum reconstruction techniques have been advocated for secondary cleft lip revision procedures. Conventional surgical management involves end-to-end orbicularis oris muscle approximation during primary cleft lip repair, often resulting in a flat lip appearance that requires secondary revision surgery at a later stage. A novel modification of the approximation (...) of the orbicularis oris muscle is described that may be implemented with any cleft lip technique in order to create an accentuated philtrum column for a natural looking philtrum. The muscle roll technique results in eversion of the orbicularis oris muscle, successfully recapturing the philtrum column topography. This is achieved by utilizing two inverted horizontal sutures, with an additional philtrum takedown suture placed in the region of the dimple to accentuate the philtrum anatomy and three-dimensional

2018 International Journal of Oral and Maxillofacial Surgery

23. Effects of Low-Intensity Contractions of Different Craniofacial Muscles in Healthy Participants - An Experimental Cross-Over Study. (PubMed)

volunteers performed six 5-minute bouts of 20% maximal voluntary contraction task of the jaw-closing (Jaw), the orbicularis-oris (O-oris), and the orbicularis-oculi (O-oculi) muscles. Participants rated their perceived pain, unpleasantness, fatigue, and mental stress levels before, during, and after the contraction tasks on 0-10 Numeric Rating Scales (NRS). Each muscle contraction task (= 1 session) was separated by at least 1 week and the order of the sessions was randomized in each subject.All muscle (...) contraction tasks evoked significant increases in NRS scores of pain (mean ± SD: Jaw; 3.8 ± 2.7, O-oris; 1.9 ± 2.2, O-oculi; 1.4 ± 1.3, P < .014), unpleasantness (Jaw; 4.1 ± 2.5, O-oris; 2.1 ± 1.9, O-oculi; 2.9 ± 1.8, P < .001), fatigue (Jaw; 5.8 ± 2.0, O-oris; 3.2 ± 2.3, O-oculi; 3.6 ± 1.9, P < .001), and mental stress (Jaw; 4.1 ± 2.1, O-oris; 2.2 ± 2.7, O-oculi; 2.9 ± 2.2, P < .001). The Jaw contractions were associated with higher NRS scores compared with the O-oris and the O-oculi contractions (P

2018 Headache

24. Anatomical Characterization and Three-dimensional Modeling of the Muscles at the Corner of the Mouth: An Iodine Staining Technique Based on Microcomputed Tomography. (PubMed)

construction, the authors found that the muscle fibers in the modiolus were oriented continuously in the running direction of the muscle itself and that there were no chaotic clumps in the region of muscle fiber convergence. The pars marginalis of the orbicularis oris muscle connects with the deep buccinator muscle, which may account for how the pars marginalis fibers act to press the upper lip against the maxillary teeth or invert it closer to the oral cavity. These findings may be helpful for plastic

2018 Plastic and reconstructive surgery

25. Our Surgical Repair for Macrostomia with Two Novel Small Triangular Flaps Long-term Follow-up and Results. (PubMed)

Our Surgical Repair for Macrostomia with Two Novel Small Triangular Flaps Long-term Follow-up and Results. The surgical methods for repairing congenital macrostomia should be carefully selected from both functional and aesthetic points of view. The surgical correction of macrostomia results in normal orbicularis oris function and symmetry of the repaired lip. In this article, the authors report their novel technique and the results obtained, assessed retrospectively. Twelve primary cases (...) of macrostomia underwent surgical repair between 1996 and 2013. The age at surgery ranged from 3 to 78 months. The authors' operative procedure uses two small triangular flaps with a superficial layer of orbicularis muscle to preserve the dynamic action of muscle fibers attached to the skin of the triangular flaps, with suturing across the orbicularis muscle bundles. The optimal length of a medial small triangular flap is 1.5 to 2.0 mm, and the length of a lateral flap is 5 to 8 mm. Evaluation was based

2018 Plastic and reconstructive surgery

26. Comprehensive approach to reestablishing form and function after radical parotidectomy. (PubMed)

followed by immediate reconstruction. An ALT was harvested to accommodate the volume and skin defect. Additional fascia lata and motor nerve to vastus lateralis (MNVL) were obtained. Anastomosis of the ALT to recipient vessels was performed, most commonly using the facial artery and internal jugular vein. OTTT was performed by securing the medial tendon of the temporalis to orbicularis oris through a nasolabial incision. Fascia lata was tunneled through the lower lip, then secured laterally

2018 American Journal of Otolaryngology

27. Effect of oral functional training on immunological abilities of older people: a case control study. (PubMed)

exercises.Unstimulated whole saliva samples had been collected for three times before training as baseline data and one time after 3 and 6 weeks of training each. Participants were instructed to conduct self-massage; their tongues were used to press their orbicularis oris muscle and buccinators, and instructed to perform bilateral massage of three major glands for facilitating saliva secretion. Medical histories, daily life habits and characteristics were also collected.Totally 30 participants (84.2 ± 8.5 years

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2018 BMC Oral Health

28. Electrophysiological Evaluation of the Facial Muscles in Congenital Unilateral Lower Lip Palsy. (PubMed)

an electroneuronography (ENoG) of the orbicularis oris muscle, nerve excitability test (NET) results, and the blink reflex (BR) were analyzed.Of 21 patients with CULLP, 20 underwent ENoG, 12 underwent a NET, and 14 underwent a BR examination. Nine of 19 patients with CULLP showed higher ENoG amplitude in the affected side than in the unaffected side. In four patients, the ENoG amplitude in the affected side was similar to that in the unaffected side whereas six patients had higher ENoG amplitude in the unaffected (...) oris and depressor labii inferioris muscles, may innervate adjacent muscles as well, such as the orbicularis oris muscle, during prenatal development.

2018 Otology and Neurotology

29. Functional and aesthetic reconstruction of a large upper lip defect using combined three local flaps: A case report. (PubMed)

deformity caused by previous partial excisions was also identified.Patient was diagnosed as upper lip nevus with secondary deformity after partial excisions.We repaired the large upper lip defect by using combined nasolabial rotation flap and orbicularis oris myocutaneous flap. An additional small piece of mucosal flap was used to lengthen the vermilion.After the surgery, patient with large upper lip defects achieved satisfactory cosmetic and functional repair.Reconstruction of the upper lip has been (...) successfully accomplished through the use of combined nasolabial rotation flap, orbicularis oris myocutaneous flap, and a small piece of mucosal flap.

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2018 Medicine

30. A Systematic Review of Lower Lip Anatomy, Mechanics of Local Flaps, and Special Considerations for Lower Lip Reconstruction.

, mechanics of local faps, and different lower lip reconistruction techniques were included. Articles focused on lower lip reconstruction with free faps were excluded. The orbicularis oris has been described as the main supportive mechanism, however, a number of other structures have been shown to provide mechanical support to the lower lip, including septations of connective tissue extending from the epithelium to the orbicularis oris, a fbroelastic meshwork located in the mentolabial sulcus (...) , and subdermal muscular fibers with dermal terminations in the area of the modiolus. Depending on the location, size, and depth of the wound, a number of reconstruction options are available. Preservation of the competency of orbicularis oris, relation-ship of the modiolus with associated muscles, and sensation, are critical components of functional reconstruction. Primary closure and local faps are assessed for these 3 components and analysis is provided. In conclusion, knowledge of the static and dynamic

2018 Journal of drugs in dermatology : JDD

31. The Effects of Proprioceptive Neuromuscular Facilitation, Myofascial Releasing Maneuvers and Home Exercises on Pain and Jaw Function in Patients With Bruxism

releasing and home exercises were used to decrease pain, jaw restriction and improve functional mobility on the masseter, lateral and medial pterygoid, buccinator, temporalis, orbicularis oris, orbicularis oculi, upper side of trapezius muscle, splenius, scalenous, and cervical extensor muscle in 20 patients with bruxism, for 2 and 6 weeks after pre-evaluation. PNF, myofascial releasing and home exercises were administered for 2 weeks, followed by 3 sets of 10 repeat home exercises and 6 weeks under

2018 Clinical Trials

32. Personal technique for definite repair of complete unilateral cleft lip: modified Millard technique (PubMed)

and outcomes. The main features of the authors' strategy are emphasizing horizontal length of the lip, orbicularis oris muscle duplication for improving the definition of the philtral column, overcorrection of domal portion than the non-cleft side in order to compensate for the recurrence during growth. Two judges rated two times the appearance of the patients' nose and lip using Asher-McDade aesthetic index. Intra- and interobserver reliabilities were determined using Cohen's kappa statistics.All patients

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2018 Archives of Craniofacial Surgery

33. Anatomical features of the incisivus labii superioris muscle and its relationships with the upper mucolabial fold, labial glands, and modiolar area (PubMed)

sides of the face; 15 men, 11 women; mean age, 70.8 years). ILSs were observed in all specimens (100%). The ILS has an oblique and linear origin from the incisive fossa of the maxilla to the point just medial to the origin of the levator anguli oris muscle (LAO). The arising fibers of the ILS arched and covered the prominent labial glands at the superior margin of the orbicularis oris muscle (OOr). After the ILS coursed laterally along the anterior part of the upper mucolabial fold, it divided

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2018 Scientific reports

34. Evaluation of the prognostic value of multimodal intraoperative monitoring in posterior fossa surgery patients with cerebellopontine angle tumors (PubMed)

to the Arak University of Medical Sciences, Arak, Iran. The degree of the facial nerve paralysis was assessed based on the House-Brackmann (HB) facial nerve grading system. The Orbicularis oris and Oculi muscles were evaluated by electromyography (EMG) before and after the surgery. Monitoring the facial nerve was performed by the EMG, Facial Nerve Antidromic Potentials (FNAPs), Transcranial Electrical Stimulation (TES), and Brainstem Auditory Evoked Potentials (BAEPs) methods. The mean HB score was 0.36.6

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2018 European journal of translational myology

35. A comparison between threshold criterion and amplitude criterion in transcranial motor evoked potentials during surgery for supratentorial lesions. (PubMed)

procedures were performed under general anesthesia. Craniotomies did not expose motor cortex, so that direct mapping was less suitable. After TES, MEPs were recorded bilaterally from abductor pollicis brevis (APB), from orbicularis oris (OO), and/or from tibialis anterior (TA). The percentage increase in the threshold level was assessed and considered significant if it exceeded by more than 20% on the affected side the percentage increase on the unaffected side. Amplitude on the affected side

2018 Journal of Neurosurgery

36. The Manifestation of Surface EMG of Swallowing Muscles in Stroke Patients With Respiratory Muscle Training

of unaffected upper limb. And patients with swallowing disturbance will receive swallowing screen test, Functional Oral Intake Scale to evaluate the functional level of oral intake of food and liquid, and voice quality analysis for voice quality and bilateral surface electromyography for measurement of masseter, oris orbicularis, submental muscle and infraspinatus muscles. All of patients will be assessed again at 6 weeks and 12 weeks later. Patient with respiratory muscle weakness will receive IMT from 30 (...) . For MIP, more negative pressure is better. MEP (maximal expiratory pressure) [ Time Frame: At the beginning and the end of program respectively, up to 6 weeks. ] MEP(cm H20) is measured after maximal inspiration while patients sitting and wearing a nose-clip. For MEP, more positive is better. Surface EMG data [ Time Frame: At the beginning and the end of program respectively, up to 6 weeks. ] The EMG of masseter, orbicularis oris, submental (anterior belly of digastrics, mylohyoid, geniohyoid

2018 Clinical Trials

37. Trial of Orencia in Patients With Myasthenia Gravis

score of subjective measurements of MG severity as designed by Dr. Daniel Drachman. The investigator will score each objective measure on a scale of 0 (no impairment) to 3 (severe impairment). The composite score of these measurements determined at baseline and at two-month increments through 12 months. The domains that make up the objective score are: Diplopia, Ptosis, Arm abduction, Gait, Orbicularis Oculi, Orbicularis Oris, Tongue, Slurp Test. The change in the composite objective score at 12

2017 Clinical Trials

38. Trial Readiness and Endpoint Assessment in Congenital Myotonic Dystrophy

situations Lip Force [ Time Frame: 1 year ] Measure of force generation by orbicularis oris Biospecimen Retention: Samples With DNA Blood Eligibility Criteria Go to Information from the National Library of Medicine Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general

2017 Clinical Trials

39. Preventing Facial Nerve Stimulation by Triphasic Pulse Stimulation in Cochlear Implant Users: Intraoperative Recordings. (PubMed)

FNS are 1) to extend stimulus phase duration or 2) to completely deactivate the electrode. In some cases, these options do not provide sufficient FNS reduction or are detrimental to subject performance. Stimulation using triphasic pulse patterns (TPP) has been shown to prevent FNS more effectively, yet the underlying mechanism remains unclear.EMG potentials of muscles innervated by the facial nerve (orbicularis oculi and oris muscles) were recorded to quantitatively compare the effect of BPP

2017 Otology and Neurotology

40. MRPL53, a New Candidate Gene for Orofacial Clefting, Identified Using an eQTL Approach. (PubMed)

malformation, we searched for genetic variants with a regulatory role in a disease-related tissue, the lip muscle (orbicularis oris muscle [OOM]), of affected individuals. From 46 OOM samples, which are frequently discarded during routine corrective surgeries on patients with orofacial clefts, we derived mesenchymal stem cells and correlated the individual genetic variants with gene expression from these cultured cells. Through this strategy, we detected significant cis-eQTLs (i.e., DNA variants affecting

2017 Journal of Dental Research

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