Submental Area Research Articles

Frenulectomy of the tongue and the influence of rehabilitation exercises on the sEMG activity of masticatory muscles

This study aimed to assess by surface electromyography (sEMG) the changes in sub-mental, orbicularis oris, and masticatory muscle activity after a lingual frenulectomy. Rehabilitation exercises in subjects with ankyloglossia, characterized by Class I malocclusion, were assessed as well. A total of 24 subjects were selected. Thirteen subjects (mean age 7±2.5years) with Class I malocclusion and ankyloglossia were treated with lingual frenulectomy and rehabilitation exercises, while 11 subjects (mean age 7±0.8years) with normal occlusion and normal lingual frenulum were used as controls. The inclusion criteria for both groups were the presence of mixed dentition and no previous orthodontic treatment.The sEMG recordings were taken at the time of the first visit (T0), and after 1 (T1) and 6months (T2) for the treated group. Recordings were taken at the same time for the control group. Due to the noise inherent with the sEMG recording, special attention was paid to obtain reproducible and standardized recordings. The tested muscles were the masseter, anterior temporalis, upper and lower orbicularis oris, and sub-mental muscles. The sEMG recordings were performed at rest, while kissing, swallowing, opening the mouth, clenching the teeth and during protrusion of the mandible. These recordings were made by placing electrodes in the area of muscle contraction.At T0, the treated group showed different sEMG activity of the muscles with respect to the control group, with significant differences at rest and during some test tasks (p<0.05). In the treated group, an increase in sEMG potentials was observed for the masseter muscle, from T0 to T2, during maximal voluntary clenching. During swallowing and kissing, the masseter and sub-mental muscles showed a significant increase in their sEMG potentials from T0 to T2. During the protrusion of the mandible, the masseter and anterior temporalis significantly decreased their sEMG activity, while the sub-mental area increased significantly.No significant change was observed in the control group during the follow-up.The sEMG potentials of treated patients at T2 reached about the same values as those of the control group at T2. At T0 and T1 the differences between the two groups were more diffused, suggesting a clinical improvement of muscular functions after treatment. Lingual frenulectomy and rehabilitation exercises seem to affect the function of the orofacial muscles. Improvement in muscle sEMG potentials after treatment was demonstrated by sEMG, which can be considered the correct method to monitor this intervention.

Efficacy of doxycycline and sodium tetradecyl sulfate sclerotherapy in pediatric head and neck lymphatic malformations

ObjectivesLymphatic malformations are congenital vascular anomalies that occur from abnormal development of the lymphatic channels. Studies have shown that sclerotherapy can be a reliable alternative to surgery. The purpose of this retrospective study is to evaluate the safety and efficacy of percutaneous sclerotherapy with doxycycline and 3% Sotradecol as primary treatment for pediatric head and neck LMs, and to assess outcomes based on lesion classification, location and sclerosant used. Study designThis study was a single center, retrospective, case series study. Materials and methodsThe medical records of 38 children who underwent percutaneous sclerotherapy of LMs in the head and neck region at our tertiary care center between 1/1/2006 and 1/31/2011 were reviewed. A mean average of 2.9 (range 1–10) sclerotherapy sessions per child were performed. LMs involved primarily the face (61.3%), posterior neck (48.4%), submental area (45.2%), and anterior neck (35.5%). ResultsTwenty-nine subjects had adequate follow-up data, with 51.7% demonstrating complete resolution, 27.6% moderate improvement, and 20.7% no response. There was no significant difference in the outcome based on the sclerosant agent used or location of the lesion. Lesion type did affect outcome and macrocystic lesions were found to have a significantly higher resolution rate (95.2%) than microcystic or mixed lesions (p<0.05). The total number of complications was similar between agents and all were minor. ConclusionOur results indicate that percutaneous therapy with doxycycline and Sotradecol is safe and effective for children with LMs of the head and neck. Better outcomes were observed with macrocystic LMs. Level of evidence4.

A Case of Multifocal Giant Rhabdomyoma in Head and Neck Region

Rhabdomyoma is a rare benign mesenchymal tumor originating from striated muscle. It is usually located in heart among children. In adulthood, it is reported most commonly between the ages of 25-40 years, especially in males, and located in extracardiac regions. It is frequently located in head and neck region, mainly on tongue, base of mouth, soft palate, pharynx and larynx in adults. Since rhabdomyomas are slow growing, painless masses, the clinical picture may be asymptomatic or may change depending on the affected region. Sixty eight years old male patient was admitted to our clinic with the complaints of progressive swelling on neck and swallowing difficulty accompanying unable to close mouth properly and speech defects of 10 years. Since the mass completely fulfilling mouth base, submandibular spaces and submental areas bilaterally was determined after the investigations, total mass excision was performed under general anesthesia. The clinical picture and treatment of the patient whose pathological diagnosis was rhabdomyoma is reported here with the review of the literature.

Air conduction, bone conduction, and soft tissue conduction audiograms in normal hearing and simulated hearing losses.

In order to differentiate between a conductive hearing loss (CHL) and a sensorineural hearing loss (SNHL) in the hearing-impaired individual, we compared thresholds to air conduction (AC) and bone conduction (BC) auditory stimulation. The presence of a gap between these thresholds (an air-bone gap) is taken as a sign of a CHL, whereas similar threshold elevations reflect an SNHL. This is based on the assumption that BC stimulation directly excites the inner ear, bypassing the middle ear. However, several of the classic mechanisms of BC stimulation such as ossicular chain inertia and the occlusion effect involve middle ear structures. An additional mode of auditory stimulation, called soft tissue conduction (STC; also called nonosseous BC) has been demonstrated, in which the clinical bone vibrator elicits hearing when it is applied to soft tissue sites on the head, neck, and thorax. The purpose of this study was to assess the relative contributions of threshold determinations to stimulation by STC, in addition to AC and osseous BC, to the differential diagnosis between a CHL and an SNHL. Baseline auditory thresholds were determined in normal participants to AC (supra-aural earphones), BC (B71 bone vibrator at the mastoid, with 5 N application force), and STC (B71 bone vibrator) to the submental area and to the submandibular triangle with 5 N application force) stimulation in response to 0.5, 1.0, 2.0, and 4.0 kHz tones. A CHL was then simulated in the participants by means of an ear plug. Separately, an SNHL was simulated in these participants with 30 dB effective masking. STUDY SAMPLE consisted of 10 normal-hearing participants (4 males; 6 females, aged 20-30 yr). AC, BC, and STC thresholds were determined in the initial normal state and in the presence of each of the simulations. The earplug-induced CHL simulation led to a mean AC threshold elevation of 21-37 dB (depending on frequency), but not of BC and STC thresholds. The masking-induced SNHL led to a mean elevation of AC, BC, and STC thresholds (23-36 dB, depending on frequency). In each type of simulation, the BC threshold shift was similar to that of the STC threshold shift. These results, which show a similar threshold shift for STC and for BC as a result of these simulations, together with additional clinical and laboratory findings, provide evidence that BC thresholds likely represent the threshold of the nonosseous BC (STC) component of multicomponent BC at the BC stimulation site, and thereby succeed in clinical practice to contribute to the differential diagnosis. This also provides evidence that STC (nonosseous BC) stimulation at low intensities probably does not involve components of the middle ear, represents true cochlear function, and therefore can also contribute to a differential diagnosis (e.g., in situations where the clinical bone vibrator cannot be applied to the mastoid or forehead with a 5 N force, such as in severe skull fracture).

Giant Sublingual Epidermoid Cyst

Epidermoid and dermoid cysts represent less than 0.01% of all oral cavity cysts. The cysts can be defined as epidermoid when the lining presents only epithelium, dermoid cysts when skin adnexa are found, and teratoid cysts when other tissue such as muscle, cartilage, and bone are present. In this article, we present a case of sublingual epidermoid cyst with a submental component in a 15 years old girl. She presented with complaints of a mass in the oral cavity, difficulty in speaking, dysphagia, progressive snoring during sleep, occasional shortness of breath and cosmetic problems for last 6 months. A mass displacing the tongue superiorly and posteriorly was noticed in oral cavity and a firm diffuse swelling was also noticed in the submental area, extending down to the thyroid notch. The differential diagnosis includes infectious process, ranula, lymphatic malformation, tumours etc. FNAC revealed preoperative diagnosis of an epidermoid cyst . Under general anesthesia a submental horizontal incision was made and the mass was excised completely. Histopathological examination of the mass confirmed diagnosis of an epidermoid cyst. DOI: http://dx.doi.org/10.3329/jbcps.v31i3.20984 J Bangladesh Coll Phys Surg 2013; 31: 159-161

Ludwig’s angina: diagnosis and treatment

Ludwig’s angina is often an infection of odontogenic origin affecting the soft tissues of the submandibular, sublingual and submental area. Objective: This review aimed to analyze the existing literature regarding the clinical features, applications for diagnosis and treatment modalities of Ludwig’s angina. Literature review: Because it is a disease of rapid evolution, and if not previously identified, may compromise the patient’s general health and even lead to death. Conclusion: Therefore, it is important to identify the correct diagnosis based on careful and complementary clinical examination, together with an effective drug coverage and early surgical intervention to provide greater control of the patient’s health.

Recurrent head and neck desmoplastic melanoma with perineural spread along the nervus mandibularis revealed by 18F-FDG PET/CT

This report describes a rare case of recurrent head and neck desmoplastic neurotropic melanoma with perineural spread along the nervus mandibularis. An 87-year-old male presented with a rapidly growing mass on the right side of the chin, 4 years after surgical excision of a desmoplastic non-melanotic melanoma of the tip of the chin, with lymphadenectomy of the right side submental and submandibular areas. A panoramic X-ray showed extensive widening of the mandibular canal compatible with perineural tumour growth. 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) images revealed intense pathological uptake in the recurrent tumour mass located in the right lower buccal fold, and linear pathological uptake in the mandibular canal. Although magnetic resonance imaging is considered the standard of reference, recognition of perineural spread on 18F-FDG PET/CT is important, as it usually leads to a change in patient management from cure to palliation and may avert further diagnostic procedures.

Post burn contracture neck: clinical profile and management.

Morbidity related to hypertrophic scars and contractures which are well known sequel after burns remains high and in fact has increased as more severely burned patients are surviving. This study was undertaken in order to assess the varied clinical presentation, precipitating factors, preventive measures, treatment modalities of neck contractures and evaluate the results after surgical procedures. This hospital based study was conducted on patients admitted in our institution with proven cases of Post burn neck contracture from 1st August 2009 to 31st July 2011. Twenty two patients of post burn neck contracture who underwent operative treatment were included. 10 of 22 cases were in the middle age group i.e. between 21-30 years. There were 5 males and 17 females. Accidental flame burn was the commonest aetiology. Fourteen patients were treated within 1 year of burns for functional disability. Excisional release was performed in 13 and incisional release in 9 of our patients. Resurfacing with STSG (split thickness skin graft) was carried out in 19 cases and a local or regional flap with or without a graft in 3 patients. Hypertrophy and recontracture were the commonest late complications and occurred in 3 cases. Good to fair results were obtained in 19 patients Local flaps have many advantages and are to be used whenever possible. It is preferable to place the grafts if used in the area surrounding the neck (donor site of flap) or at least in the non-visible area of the neck (submental area). When a combination of flap & graft is used, it's preferable to place the flap in a horizontal intersecting fashion in between the two patches of the graft. A follow up program for reasonable period is highly desired.

Epidemiology of a Mumps Outbreak and Effect of Measles, Mumps and Rubella Vaccination in Nan Province, Thailand, June to December 2010

In early September 2010, a nurse in Pua District Hospital observed an unusual increase in number of mumps cases and an outbreak investigation was conducted on 5 Oct 2010. This study described epidemiological characteristics of the outbreak as well as secondary attack rates and outcome of MMR vaccination campaign conducted during the outbreak. We reviewed medical records at Pua District Hospital and interviewed the cases’ family members, classmates and teachers. A clinical case was a person with acute parotitis or acute lymphadenitis at preauricular, submandibular or submental area with onset of illness from 1 Jun to 31 Dec 2010. A confirmed case was a clinical case who tested positive for mumps viral IgM by enzyme-linked immunosorbent assay (ELISA), mumps virus by polymerase chain reaction (PCR) or virus isolation. During the investigation period, we also conducted a single mass measles, mumps and rubella (MMR) vaccination campaign, targeting children aged 1-6 years in 10 sub-districts. From 1 Jun to 13 Oct 2010, 129 clinical cases (attack rate = 0.2%) were found in 11 out of 12 sub-districts. Of which, 70.4% were less than six years old children. Among 10 laboratory confirmed cases, six were positive for mumps IgM by ELISA and four positive for mumps virus by PCR, with one case revealed as genotype J. Secondary attack rate among 1-6 years old children was 31.4%. Attack rate among children aged 1-6 years during the pre-vaccination campaign period was 289.4 per 10,000 populations and decreased to 54.3 per 10,000 after the campaign. This investigation supported the Ministry of Public Health to change from using monovalent measles vaccine to MMR vaccine for 9-month old children in June 2010.

English

A large non symptomatic soft swelling in the submental area are usually due to thyroglossal duct cyst, sublingual dermoid cyst, giant ranula and cystic hygroma. Here we present a case of a rare giant submental hemangioma with multiple phleboliths in the floor of the mouth presenting as a submental swelling. We report a case of 14 years old male who presented with the mass in the submental region that had been gradually growing over period of several years.

Baş boyun alan enfeksiyonu ile Herpes Simpleks virüs birlikteliği

A six-year-old girl was admitted to our clinic with the complaints of swelling, trismus, pain in the submandibular, submental and masticator area and vesicular lesions on the mandibular branch of trigeminal nerve (C5, V3). We present this case of head and neck space infection presenting with Herpes Simplex virus, as it is rarely seen.

English

Chronic inflammation of the dental pulp is one of the reasons for cutaneous sinus tract of odontogenic origin. A cutaneous sinus or extra oral sinus from a lesion of endodontic origin is rare as compared to an intra oral sinus and may occur as result of long standing inflammatory process associated with necrotic pulp. Such patients are usually healthy and are unaware of the underlying asymptomatic dental problem. Common clinical presentation in these patients is a papule or nodule located most commonly in the chin, cheek or in submandibular area and this leads them to seek treatment from a general physician or a dermatologist. They may undergo unnecessary multiple biopsies, multiple surgical interventions, multiple antibiotic regimens, and even be subjected to radiation therapy or electrodessication. However more often than not, recurrence of sinus tract takes place because the primary dental etiology is never taken care of. The present article aims to report three cases of cutaneous sinus tracts in the submental area which were treated conservatively by endodontic treatment of the involved teeth.

A persistent discoloration of the neck sparing the submental area

Bahar Bahrani is a medical student at the College of Medicine in Saskatoon, Saskatchewan, Canada. Amor Khachemoune practices in the department of dermatology at the State University of New York and the Veterans Affairs Medical Center in Brooklyn, New York. The authors have indicated no relationships to disclose relating to the content of this article. Joe R. Monroe, PA, MPAS, department editor

Squamous Cell Carcinoma on the Upper Lip of a Patient with Discoid Lupus Erythematosus

Squamous Cell Carcinoma on the Upper Lip of a Patient with Discoid Lupus Erythematosus

Submental Area Rejuvenation by Digastric Corset: Anatomical Study and Clinical Application in 20 Cases

Knowing the difficulties and limitations of surgery for rejuvenating the submental area during a cervicofacial rhytidectomy, we came up with the concept of the digastric corset, which is described in this article along with the surgical importance of the platysma, digastric and mylohyoid muscles based on anatomical dissections. A study of ten cadavers was conducted to describe precisely the limits of the submental area, the mandibular edge between the two Furnas ligaments, and the hyoid bone. Each anatomical item was dissected plane by plane: the skin, platysma, digastrics muscles, and mylohyoid muscle. The sliding of each muscle relative to the others was studied, photographed, and recorded. Feldman's corset technique was tested on two cadavers and a digastric corset was performed on eight cadavers. After suprahyoid fat lipectomy, we suture the digastric retaining ligaments to the mylohyoid muscles using a running suture, like a corset, then the platysma muscles are put aside on the median line followed by lateral platysma suspension. The different steps are presented and the results of 20 patients who underwent this procedure are presented after 1year of follow-up. This study showed that the technique of a digastric corset anchored on the mylohyoid allows for one-step reconstruction of the floor of the mouth and a well-defined anterior cervical angle, a sign of a youthful-looking neck. This technique is indicated for difficult necks, when lateral repositioning of the platysma alone gives insufficient results. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Single‐port endoscopic thyroidectomy via a submental approach: Report of an initial experience

Based on our experience of trans-areola single-site endoscopic thyroidectomy and a preclinical study in the porcine model, we attempted to develop a new approach called trans-submental single-port endoscopic thyroidectomy (TSSPET). Two female patients (43 and 27 years old, respectively) were selected for TSSPET. Both were preoperatively diagnosed with benign thyroid nodule by ultrasonography and fine-needle aspiration cytology (FNAC). Two mini-incisions were made in the submental area. The isthmectomy was performed for 1 patient and a right lobectomy for the other. This procedure was successfully accomplished in 2 cases. The operative time was 108 minutes and 150 minutes, respectively. No complications occurred. Postoperative hospital stay was 2 days. After 3 months, cosmetic result was satisfactory. Our initial experience demonstrates that the TSSPET is feasible and safe for selected patients. Nevertheless, large series and comparative studies could be necessary to further confirm its effectiveness.

Bullet in the Pharynx: Endoscopic Management

Gunshot wounds of the neck are diagnostically and therapeutically challenging cases and treatment should be individualized and multidisciplinary.We present an unusual case of bullet injury to the neck. A fourteen-year-old male patient sustained an accidental bullet injury to the submental area of the neck, with no serious injuries to the vital structures. The bullet was found close to the epiglottis, embedded in the pharynx between the base of the tongue and the lower pole of the left tonsil. The patient underwent a successful endoscopic removal with no serious postoperative complications. In this paper, this case is discussed, its presentation and management, together with literature review.

Lemierre's Syndrome Originated from the Odontogenic Infection: A Case Report

Also called necrobacillosis or postanginal sepsis, Lemierre's syndrome (LS) is an uncommon but potentially lethal complication of odontogenic infection. A 27-year-old male diagnosed with Ludwig's angina was transferred from a local hospital due to continuous fever and chills after incision and drainage under general anesthesia. The swelling of both submental and submandibular area subsided, but the fever and chills persisted. While generalized malaise improved, sepsis developed together with the deterioration of liver function. The chest computed tomography scan revealed multiple cavitations throughout both lungs, which were diagnosed as septic pulmonary embolism. After consulting the department of infectious diseases, the patient was treated with intravenous antibiotics focusing on vancomycin and additional antibiotics. After 3 weeks of treatment, the patient recovered completely. Despite its decreased mortality, dentists are not familiar with LS, and it is difficult to diagnose correctly. In this paper, we report a case and present a review of literature.

Patient-Specific Rhytidectomy: Finding the Angle of Maximal Rejuvenation

Rhytidectomy is fundamentally an operation of tissue release and resuspension, although the manner and direction of suspension are subject to perpetual debate. The authors describe a method for identifying the angle of maximal rejuvenation during rhytidectomy and quantify the resulting angle and its relationship to patient age. Patients were prospectively enrolled; demographic data, history, and operative details were recorded. Rhytidectomies were performed by the senior author (AAJ). After complete elevation, the face-lift flap was rotated in a medially-based arc (0-90°) while attention was given to the submental area, jawline, and midface. The angle of maximal rejuvenation for each hemiface was identified as described, and the flap was resuspended. During redraping, measurements of vertical and horizontal skin excess were recorded in situ. The resulting angle of lift was then calculated for each hemiface using trigonometry. Symmetry between sides was determined, and the effect of patient age on this angle was assessed. Three hundred hemifaces were operated (147 women; 3 men). Mean age was 60 years (range, 37-80 years). Mean resulting angle for the cohort was 60° from horizontal (range, 46-77°). This was inversely correlated with patient age (r = -.3). Younger patients (<50 years, 64°) had a significantly more vertical angle than older patients (≥70 years, 56°; P < .0002). No significant intersubject difference was found between hemifaces (P = .53). The authors present a method for identifying the angle of maximal rejuvenation during rhytidectomy. This angle was more superior than posterior in all cases and is intimately related to patient age. Lasting results demand a detailed anatomical understanding and strict attention to the direction and degree of laxity.

Versatile Use of Submental Tissue for Reconstruction of Perioral Soft Tissue Defects

To obtain optimum aesthetic result, perioral soft tissue defects require reconstruction using similar tissue. The submental area has very similar characteristics to perioral soft tissue and consists of thin, pliable tissue with a perfect color match. Therefore, we have used submental tissues for reconstruction of perioral soft tissue defects and application of the techniques, and results are discussed in this article. Between February 2001 and April 2008, 14 perioral soft tissue reconstruction procedures using the submental tissues were performed. The defect was on the upper lip including nasal columella in 5 cases, mentum in 3 cases, and oral commissure including buccal cheek in 6 cases. The techniques that were used included composite graft in 3 cases, local advancement flap in 3 cases, pedicled flap in 5 cases, and free flap in 3 cases. Patients were followed up for 9 months to 5 years. During this period, no major complications were noted, and satisfactory aesthetic results were obtained. All transferred submental tissues survived. In all patients, donor defects were closed primarily except in cases of local advancement flap. The donor-site scar was inconspicuous and well hidden below the mandibular margin and did not restrict neck motion in all patients. In particular, hair restoration on the flap was excellent in male patients. We believe that the submental area can provide useful soft tissue for perioral soft tissue defects because it provides a good color and texture match with perioral skin and can be harvested with minimal donor-site morbidity.