جستجوی مقالات مرتبط با کلیدواژه « Lip » در نشریات گروه « پزشکی »

The objective of this study was to evaluate the lips Morphology in Iranian adults with normal occlusion in Isfahan, Iran.

This cross-sectional study analyzed the lateral cephalograms of 102 individuals aged 18 to 30 years with normal occlusion in Isfahan, Iran. Nine linear measurements (upper lip to S line (ULS), lower lip to S line (LLS), upper lip to B line (ULB), lower lip to B line (LLB), upper lip to E line (ULE), lower lip to E line (LLE), lower lip to H line (LLH), and upper and lower lip thickness), and 5 angu-lar measurements (nasolabial, inferior labial, Z, upper lip prominence and lower lip prominence angles) were made on the lateral cephalograms. The study compared these measurements between males and fe-males using the Mann-Whitney and independent t tests (α=0.05).

Assessment of lips morphology using 9 linear and 5 angular measurements showed variances in the mean values of several measurements compared to standard values reported by Ricketts, Steiner, Burstone, and Merrifield. Specifically, differences were observed in the ULE, LLE, ULS, LLS, ULB, and Z angle, while the LLB, LLH distances, and the nasolabial angle fell within the standard range. Additionally, males exhibited significantly greater upper and lower lip thickness compared to females (P<0.001). No other sig-nificant differences were found between males and females (P>0.05).

Most of the measured indices in the study population differed from the standard values report-ed in the literature, which highlights the need to take into account the Iranian norms in orthodontic treat-ment of Iranian patients.

Secretory carcinoma, previously known as mammary analog secretory carcinoma, is a rare malignancy of salivary glands. It has a diversity of microscopic patterns and is similar to other salivary gland tumors.

 Case Report:

This report presents the case of a 32-year-old female patient with a painless swelling of the upper lip and a history of recent surgery for an immature ovarian teratoma.  The microscopic sections revealed a circumscribed neoplasm composed of macrocystic, papillary-cystic, and microcystic patterns with bland vesicular nuclei and vacuolated cytoplasm. Tumoral cells were strongly positive for mammaglobin, SOX10, GATA3, S-100, and vimentin. The diagnosis of salivary gland secretory carcinoma was made. After 22 months, there has been no recurrence. 

As secretory carcinoma is a relatively new entity, it is necessary to understand its characteristics. Although the overall incidence of second primary cancer in patients with salivary gland cancers is low, the possibility of its presence in such patients should be considered.

Cheiloscopy is a forensic investigation technique based on the identification of lip traces. This study sought to assess the distribution of lip print patterns and their stability during the time.

Lip prints were obtained from 133 dental students and the distribution of patterns was evaluated, using the Five-stage Suzuki and Tsuchuhashi’s classification. Six months later, lip prints were obtained again from 40 out of 133 students who were chosen accidentally to assess the stability. The individual lip formula was determined by Paired T-test and ANOVA at p<0.05. 

Type I was the most common pattern in the lips. Lip formulas were found to be unique for each individual. No significant difference existed in the distribution of lip print patterns between males and females, or between the upper and lower lips. In terms of stability, 73.8% of lip print patterns remained unchanged during a 6-month period. 

Lip print patterns are unique to each individual and have medium stability over time. Therefore, cheiloscopy may be considered a useful identification tool in forensic dentistry. However, the lip print pattern cannot indicate the sex of people.

Multiple mucous retention cysts are relatively rare conditions, particularly on the lower lip. This case report presents a 60-year-old man with multiple swelling structures located in the right and left buccal mucosa, and lower labial mucosa. A biopsy was done, and a histologic assessment confirmed dilation of minor salivary ducts and cystic formation. Several factors may interfere with the creation of this uncommon phenomenon, such as alteration in salivary secretion, and congenital or acquired weakness in the ductal structure. In addition, it is suggested that ductal narrowing may be due to the long-term application of some mouthwash containing hydrogen peroxide, deodorant also anti-plaque, and tartar-control toothpaste.

The lip repositioning surgical technique arose with the objective of correcting and harmonizing the act of smiling. Since the conventional technique was published, some modifications of the technique have been proposed in order to counteract postoperative recurrence and to achieve the best esthetic appearance of the smile. The objective of this paper was to describe the laser-assisted lip repositioning technique (laser-assisted LRS) with a 940nm diode laser and 2780nm Er, Cr: YSGG, as a modification to the conventional lip repositioning technique, for the treatment of a gummy smile.

The proposed technique consists in achieving the descent of the upper lip by removing the intraoral mucosal band through the laser peeling of the oral mucosa, preserving the connective tissue intact for healing by secondary intention. The technique was implemented in two patients with a diagnosis of a gummy smile caused by a short and hyperactive upper lip; the healing process was satisfactory, and there was no bleeding or postoperative edema. Postoperative controls were performed at 3 and 10 months, and no recurrence was found.

the 940nm Diode laser or 2780nm Er, Cr: YSGG laser-assisted lip repositioning the technique described here is less invasive than that performed with a conventional scalpel, offers aesthetic results, lower risk of infection, and recurrence of the gummy smile in the long term.

This study investigated the prevalence and pattern of lip premalignant lesions in patients referred to the Cancer Institute of Imam Khomeini and Shohada-E-Tajrish Hospitals between 2004 and 2016.

This retrospective cross-sectional study was conducted on the pathology reports of patients retrieved from the archives of the Pathology Departments of the Cancer Institute of Imam Khomeini and Shohada-E-Tajrish Hospitals between 2004 and 2016. The gender, age, lesion location (upper lip, lower lip, commissure, lip in general, not stated), pathological type, and clinical diagnosis of the lesions were extracted from patient records. The Fisher's Exact test was used to analyze the data by SPSS version 16.

Of a total of 237,392 patients, 40 (0.02%) cases had lip premalignant lesions. The mean age of patients was 63.71±14.11 years (range 3 to 92 years). The prevalence of lip premalignant lesions was higher in males, with a male to female ratio of 4:1. The most common location and histopathological type of lesions were the lower lip, and actinic keratosis (60% of the cases), respectively.

Lip premalignant lesions were observed in 0.02% of patients. Although this rate is lower than the global prevalence of precancerous lesions of the lip and oral cavity (4.47%), because of the high malignant transformation rate of lip premalignant lesions, every clinician must take part in early detection of these lesions by clinical examination. To confirm the diagnosis, biopsy may be requested for histopathological diagnosis.

For many years oral esthetic problems treated by dentists were limited to those involving the teeth without giving consideration to the gingiva. However, today it is well established that these structures should be in balance to appear esthetically pleasing. More than 3mm gingival show during smiling is considered as ‘excessive gingival display’ also known as “gummy smile”, which is not attractive. The current case series, presents three patients with gummy smile managed by lip repositioning surgery, each with 1 year follow up. Our objective was to introduce lip repositioning as a successful treatment modality to decrease gingival show using a simple and conservative surgical approach.

Augmentation of facial components is an acceptable approach in facial aesthetics. The best filler material and the optimal technique for facial soft tissue augmentation still remain to be determined. This study has assessed the lip augmentation using post-auricular fibroareolar tissue as a new autogenous filler.

This prospective study enrolled patients who were candidate for lip augmentation. Loose fibroareolar tissue was harvested from post-auricular region and was inserted in the prepared lip pocket. Standard digital photography was used for lip analysis in each patient before and 6 months after surgery (the height and projection of the upper lip and lower lip).

At a mean follow-up period of 6 months, average upper and lower lip height increased from 5.27 to 8.72 mm (p<0.001), and the average upper and lower lip projection increased from 3.97 to 7.75 mm (p<0.001).

Our technique was minimally invasive and a safe method, in which post-auricular loose fibroareolar tissue was applied for lip augmentation with minimum donor site morbidity and long-term results. On the follow-up, all patients were satisfied with the results and no patients required any revision operation. Moreover, the complication rate was negligible.

Gastrointestinal Stromal Tumor (GIST) is an uncommon mesenchymal tumor of the gastrointestinal tract. It is rarely presented as Multiple Primary Malignancy Syndrome (MPMS) without an association with the familial syndromes.

A 63-year-old Iranian Azeri man admitted to a government hospital, affiliated to the Tabriz University of Medical Sciences, Tabriz, Iran, in 2012. The illness presented with complicated gastrointestinal problems with the diagnosis of GIST of the stomach, treated with imatinib. They family history and the screening tests of malignancies were negative, but the patient diagnosed with Squamous Cell Carcinoma (SCC) of the lower lip, leading to 28 courses of radiotherapy, followed by the recurrence of gastrointestinal symptoms, the GIST and SCC of the esophagus, that was also detected accidentally.

Management of the multiple primary malignancy syndrome needs multidisciplinary teamwork. The study of MPMs, its etiology, and epidemiology can provide us proper ways of management.

Schwannoma is one of the most common benign intracranial tumors which originates from the Schwann cells of neural sheaths in the upper part of vestibular branch of the eighth nerve, especially in patients with neurofibromatosis type 2. Schwannoma in the other parts of head and neck region is, however, relatively uncommon.The present report describes a rare case of schwannoma that was accidentally discovered in the upper lip in asymptomatic patient lasting for more than 10 years with recently size enlargement. Schwannoma could be seen in a variety of anatomic sites. Thus, this diagnosis should be considered in the differential diagnosis of soft tissue tumor in any location.

Statement of the problem: Nowadays leishmaniasis is a common infectious disease around the world which is caused by a protozoan parasite named Leishmania. This parasite is transmitted to human by an infected female sand fly. This disease has three clinical forms; mucosal forms are rare in Iran. The purpose of this study was to report a case of leishmaniasis with lip and oral mucosal involvement that healed successfully. This article is about patients with lip leishmaniasis with oral-mucosal involvement, clinical features were diffuse lip swelling and ulcer in right lower lip vermilion and buccal mucosa. A smear was caught which proved the diagnosis of leishmaniasis. Thereafter, the patients were referred to a dermatologist for treatment and follow up showed complete healing of the lesions. Oral mucosal leishmaniasis is rare. However, the swelling may cause different complications like loss of teeth or respiratory obstruction. It should be noted that time is a key point in treatment. So, it is necessary for us to train the differential diagnosis of chronic ulcerated oral lesions to our dentists.

Hemangioma, which is a rife benign proliferative lesion with vascular tissue origin, is the most common vascular anomaly of infancy. Cellular hemangioma is one type of these tumors, known as the vascular channel formation of endothelial cells. This report describes a 34-year old man with an exophytic lesion on the lower lip , firm, dome shape ,smooth surface with mild keratosis who came to us two months ago ; histopathologic finding showed a relatively rare subtype of hemangioma, cellular hemangioma ,which characterized by the potential for recurrence and cellular immaturity . Among hemangioma subtypes, the most common are cavernous and capillary hemangiomas; a relatively rare subtype is cellular hemangioma, characterized by the potential for recurrence and cellular immaturity. CH most commonly involved parotid gland, but may also occur internally in the oral mucosa in infancy and early childhood. Mmucocele and pyogenic granuloma were considered in the differential diagnosis for our case.

Leishmaniasis is a protozoal disease transmitted by sand-fly. The term leishmaniasis encompasses multiple clinical syndromes.
A 24-year-old male native of Yazd, Iran, was referred from the dental and subsequently to the infectious clinic with complaints of ulcer and swelling over his lower lip for three months. The lesion progressively increased in size over a few weeks and there was no history of fever or other complaints. The lesion had response to treatment with multiple antibiotics by various medical practitioners.
The case was interesting according to the rare location of the lesion since it can be confused with other infectious diseases.

Excessive gingival display (GD) is a frequent finding that can occur because of various intraoral or extraoral etiologies. This work describes the use of a mucosal repositioned flap for the management of a gummy smile associated with vertical maxillary excess (VME) and hypermobility of the upper lip followed by injection of Botox.
Seven female patients in the age range of 17–25 years presented with a gummy smile. At full smile, the average GD ranged from 6 to 8 mm. A clinical examination revealed hypermobility of the upper lip. A cephalometric analysis pointed to the presence of VME. The mucosal repositioned flap surgery was conducted followed by injection with botulinum toxin type A (Botox) 2 weeks postsurgically.
After 4 weeks, results were definitely observed with a decrease from 8 mm gingival exposure to 3 mm, which was considered as normal GD for an adult during smiling.
For patients desiring a less invasive alternative to orthognathic surgery, the mucosal repositioned flap is a viable alternative. Moreover, Botox is a useful adjunct to enhance the esthetics and improve patient satisfaction where surgery alone may prove inadequately in moderate VME.

Approximately 25% of all oral cavity carcinomas involve the lips, and the primary management of these lesions is complete surgical resection. Loss of tissue in the lips after resection is treated with a variety of techniques, depending on the extension and location of the defect.Here we review highly accepted techniques of lip reconstruction and some of new trials with significant clinical results. Reconstruction choice is primarily depend to size of the defect, localization of defect, elasticity of tissues. But patient’s age, comorbidities, and motivation are also important. According to the defect location and size, different reconstruction methods can be used. For defects involved less than 30% of lips, primary closures are sufficient. In defects with 35–70% lip involvement, the Karapandzic, Abbe, Estlander, McGregor or Gillies’ fan flaps or their modifications can be used. When lip remaining tissues are insufficient, cheek tissue can be used in Webster and Bernard advancement flaps and their various modifications. Deltopectoral or radial forearm free flaps can be options for large defects of the lip extending to the Jaws. To achieve best functional and esthetic results, surgeons should be able to choose most appropriate reconstruction method. Considering defect's size and location, patient's expects and surgeon's ability and knowledge, a variety of flaps are presented in order to reconstruct defects resulted from tumor ablation. It's necessary for surgeons to trace the recent innovations in lip reconstruction to offer best choices to patients.

Exfoliative Cheilitis (EC) is a rare chronic inflammatory condition affecting the vermillion border of the lips and characterized by excessive production of keratin. In this paper, a case of chronic EC that was relatively resistant to usual treatment is to be introduced. Also, we explain its clinical course and treatment procedures and measures. We report a 25-year-old Iranian woman presented with desquamation of her lips. History, clinical feature and histopathological examination revealed a diagnosis of EC. Although treatment of EC in the present study had considerable success in the short-term follow-up, it should be noted, due to the unknown of the exact cause, no specific treatment or protocol has still been identified..

Anthropometry (morphometry of the human) is measurement of linear and angular dimensions of the human body. Since the anthropometric parameters which are based on age, sex, geographical location and ethnic characteristics of the human species are different, therefore, anthropometric studies of population by age and sex should be done separately. In this study, anthropometric measurements lips and different patterns of lip line were studied in 133 males (4-40 years) with Persian ethnic who were living in Mashhad. These persons had no inflammation, herpes, malformations such as cleft lip, and surgery history in lib and jaw. Lip full-face photos were taken using a digital camera (Nikon, 12.3 Mega Pixels). Anthropometric measurements of mouth width (ch-ch); width of philtrum (cph-cph); height of the total lip ((ls-li;) the entire lip area (total area) were measured on computer by MIP software. Data were evaluated statistically using SPSS, polynomial regression and ANOVA models (P<0.001). There was a significant correlation between age and parameters of the mouth width, lips height to nose and total area of the lip. Conclussion: Considering significant relationship between the quantities investigated and age, we can use anthropometric data of lips in many fields including medical, criminal, etc. By comparing this study with other studies, it can be concluded that there is the most similarity in the size of lip of Persian men in Mashhad with men living in India. It is hoped that in the similar future studies, extensive statistical societies be prepared in each races of Turks, Baluchis, Kurds in order to complete anthropometric database of lip in Iranian Persian ethnics.

Hemangiomas are the most common benign tumor of infancy that can occur anywhere in the body. Intramuscular hemangiomas (IMH) are accounting for approximately 1% of all cases and the muscles of extremities are the most common sites. Because of scarcity and variable clinical features of these tumors, we decided to report a case of IMH in the upper lip mucosa..Case Report: The patient was a 54-year-old male that was referred to our clinic for swelling of upper lip mucosa and face asymmetry. The lesion was excised. The histological study revealed an IMH.. Surgical excision might be an effective approach in IMH of upper lip. Complete resection minimizes the relapse rate of the tumor and results in favorable cosmetic outcomes..