Objective: The severity of cleft lip (CL) varies considerably from complete bilateral CL and palate at one end of the spectrum to a minimal CL at the other. In some cases of microform clefting, there may be no visible manifestation of the defect on the lip surface (i.e., the defect is occult) and no residual functional deficit. This study used high resolution ultrasonography to detect subclinical anomalies of orbicularis oris muscle (OOM) in first degree relatives of CL +- cleft palate children and compared it with controls.
Materials And Methods: Thirty relatives of 25 children with non-syndromic CL or CL+ CP were identified for the study. Thirty subjects having negative family history of CL/P in three generations and absence of any minimal cleft features were taken as controls. Ultrasound scans of OOM of all the controls and relatives were taken. Statistical analysis was performed using standard χ2 tests with Yates correction.
Results: Defects were seen in 13.3% of relatives and no defects were seen in controls, this was not statistically significant.
Conclusion: The data support the hypothesis that subclinical CL cases with subepithelial OOM defects do exist and Orbicularis oris discontinuities represent the mildest form of CL.
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http://dx.doi.org/10.4103/0970-4388.105017 | DOI Listing |
Cleft Palate Craniofac J
January 2025
State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China.
Objective: Apart from rupture and displacement of muscle fibers, structural defects exist in cleft muscles but have not been adequately investigated. This study aimed to examine the histological and molecular features of the cleft muscles.
Design: Orbicularis oris (OO) and tensor fasciae latae (TFL) muscle samples were obtained from patients with cleft lip and alveolar.
J Plast Reconstr Aesthet Surg
November 2024
Department of Plastic and Reconstructive Surgery, Ichikawa General Hospital, Tokyo Dental College, Ichikawa, Japan.
Chemodenervation with botulinum A toxin and neuromuscular retraining therapy are commonly performed as first-line treatments for postparalytic facial nerve syndrome (PFS). However, their effects are temporary, and side effects typically develop. Currently available selective neurectomy approaches are limited by variations in the anatomy of the peripheral branches of the facial nerve and the ability to reduce perioral synkinesis, but not periocular synkinesis.
View Article and Find Full Text PDFClin Oral Investig
November 2024
Department of Oromaxillofacial-Head and Neck Surgery, School and Hospital of Stomatology, Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang, Liaoning, 110002, China.
Objectives: Despite the versatility of flap designs for lower lip reconstruction, the notion of orbicularis oris (OO) ring integrity was barely stressed. Traditional flap transfer leads to fibrous orientation inconsistency with the remaining OO. Therefore, the aim of this study is to share the experience of combining local flaps with depressor anguli oris (DAO) transfer for lower lip reconstruction and OO sphincter function restoration.
View Article and Find Full Text PDFAnn Otol Rhinol Laryngol
November 2024
Division of Facial Plastic and Reconstructive Surgery, Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.
Objective: Surgical management of head and neck cancer (HNC) can result in significant functional deficits. Large tumors of the oral cavity may require extensive resection and the need for microvascular free-flap reconstruction involving the use of adynamic tissue. This may result in oral incompetence, drooling, and unsatisfactory esthetic outcomes.
View Article and Find Full Text PDFIndian J Otolaryngol Head Neck Surg
December 2024
Department of Dentistry, All India Institute of Medical Sciences, Nagpur, India.
This study is envisioned to assess the structural changes the muscles undergo beneath the submucosal tissues and whether these changes necessitate a novel strategy from the existing conventional modality in the treatment of oral submucous fibrosis (OSMF) medically through a systematic literature survey. Literature search was performed electronically using Medline, EMBASE and CENTRAL databases to identify published literature until the end of April 2024 in dental, oral and maxillofacial surgery, plastic surgery and otolaryngology journals containing the terms "oral submucous fibrosis", "muscles of mastication", "muscles of facial expression", "histopathologic study", "ultrasonographic study", "CT", "MRI" in either their titles, abstracts, and keywords with only English being the preferred language. The data was extracted from the selected articles and prudently studied to gather and compile the data.
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