Showing 5 results for Lip
M,. Sahebjamei , S. Manifar ,
Volume 11, Issue 4 (8-1998)
Abstract
Angiolipoma is a benign mesenchymal Lesion that is mainly occures on trunk, arm and forearm as a subcutaneous nodule. The occurrence on head and neck is rare.In this article, we are going to review and present a new and unusual care of angiolipama.
A. Khavari , S. Yassaei ,
Volume 14, Issue 4 (1-2002)
Abstract
The purpose of this study was to investigate the soft tissue profile changes of the lower face following premolars extraction and incisor retraction. In order to do that, pre-and post treatment lateral cephalometric radiographs of 40 female orthodontic patients, with cl. II div. I malocclusion (22 patients) and bialveolar protrusion (11 patients) were analyzed. At beginning of orthodontic treatment, their mean age was 18.10 years, ranging from 15-24. All cephalometric radiographs were analyzed by a conventional and confirmed method called "combination analysis". The findings revealed that "lip tension" is a significant factor in soft tissue response to orthodontic treatment, so that in patients with lip strain, nasolabial angle increase was significantly more that those without lip strain. Moreover, regarding the increase of vermilion thickness of the upper lip, a significant difference was observed between two groups. In patients with lip strain, following premolars extraction and incisors retraction, lip strain was reduced or eliminated and upper lip vermilion thickness increased, following incisors retraction, the slope of nasal inferior border, in the group with lip strain, was reduced, while in the group without lip strain, this slope increased.
Am. Moein Taghavi , A. Haerian Ardakani , Mr. Talebi Ardakani , I. Tabatabai ,
Volume 18, Issue 2 (5-2005)
Abstract
Statement of Problem: Hyperlipidemia is a major risk factor for cardiovascular disease. In recent years some evidence has been presented regarding the association between periodontal and cardiovascular diseases.
Purpose: The aim of this study was the evaluation of association between hyperlipidemia and periodontitis.
Materials and Methods: In this case-control study, levels of plasma lipids in 40 subjects with periodontitis (CPITN score III or IV) were measured and compared with 40 age and sex matched controls. Data were analyzed using t-student test with P<0.05 as the limit of significance.
Results: Total cholesterol (CHL) and triglyceride (TG) were significantly higher in case group compared with control group. (P=0.045 and P=0.016 respectively). HDL and LDL cholesterols were higher in cases but showed no significant differences with controls. The relative frequency of pathologic values of CHL and TG were significantly greater in cases compared with control group (P=0.005 and P=0.001 respectively).
Conclusion: Based on the findings of this study, hyperlipidemia may be associated with periodontitis in medically healthy peoples but whether periodontitis causes an increase in levels of serum lipids or whether hyperlipidemia is a risk factor for both periodontitis and cardiovascular disease need to be further investigated.
Mohsen Shirazi, Yasamin Farajzadeh Jalali, Hojat Darvishpour,
Volume 28, Issue 3 (10-2015)
Abstract
Background and Aims: Cleft lip and palate patients require orthodontic treatments during their childhood and adolescence. Tweed diagnostic triangle as well as cephalometric assessments provides important data regarding the skeletal patterns for the treatment and diagnostic purposes. The present study determined the cephalometric changes of Tweed triangle in the cleft lip and palate patients compared to normal patients.
Materials and Methods: In total, 101 cleft and palate patients as well as 95 normal individuals with the balanced age, gender and race were evaluated. All the cleft and palate patients had similar treatment histories. Radiographic clichés were obtained from both groups and the images were traced after identifying the anatomic landmarks. The studied landmarks included points, lines, and plans as well as dental and skeletal angles and distance ratios measured in radiographic images. The landmarks were statistically analyzed using Student t test.
Results: Significant differences were found between the cleft lip and palate patients and normal individuals regarding craniofacial complex morphology (P<0.001). Gender did not show significant effect on the cephalometic indices changes (except to IMPA and FMIA angles). Tweed angle changes were more in the males than that of females between normal and cleft lip and palate patients. Mandibular retrusion (decreased SNB), gonial angle opening, increased mandibular plan inclination and facial anterior height were similar in the normal and cleft lip and palate individuals while no significant differences were found between two groups regarding cranium indices (P>0.05).
Conclusion: In total, significant differences were observed between normal and cleft lip and palate individuals regarding Tweed diagnostic triangle area. These differences were decreased IMPA and increased FMA and FMIA angles. No significant differences were found in terms of other indices.
Mahdieh Pashapour, Reza Faraji, Valiollah Arash, Seyedali Seyedmajidi,
Volume 37, Issue 0 (3-2024)
Abstract
Background and Aims: The display of an individual's teeth varies in different facial expressions, which significantly affects the beauty of the lower face and overall appearance. The ideal display of incisors is influenced by lip morphology and is an essential aspect of treatment planning. This study aimed to evaluate the ideal display of incisors at rest in women with different lip forms, as assessed by dentists and laypeople.
Materials and Methods: This was a cross-sectional study that was conducted in 2024 at Babol University of Medical Sciences. 46 dentists and 92 laypeople were selected and included in the study in an easy and accessible way. The distance between the uppermost area from the lower edge of the vermilion of the upper lip to the imaginary line between the two commissures was used to classify the lip shape, which was divided into three categories: straight (0-3 mm), medium (3-6 mm) and long (more than 6 mm). Smile images of three women in the age range of 15-30 years were collected and manipulated, resulting in six new images from each original image with varying degrees of incisor display using Photoshop (a total of 18 images). The designed images were randomly placed in a booklet and given to participants, who scored each image on a scale of zero to 100. The data were analyzed by SPSS software version 22 and using the Mann-Whitney test at a significance level of 0.05.
Results: A total of 138 participants took part in the study, including 46 dentists (33.3%), comprising 17 males (37%) and 29 females (63%), and 92 laypeople (66.7%), including 46 males (50.0%) and 46 females (50.0%). Laypeople gave higher scores to images of straight and moderate lip forms than dentists. However, this difference was not statistically significant (P>0.05). In addition, dentists gave significantly higher scores to all images related to the long lip form than laypeople (P<0/05). In addition, among laypeople, men gave a higher score than women to images related to straight and moderate lip form, which was statistically significant (P<0.05).
Conclusion: The findings of this study indicated that a 2.5 mm incisal display at rest was suitable for patients with a straight lip form. In general, it can be concluded that by changing the shape of the lip from straight to long, there is a preference for increasing the amount of incisal display in the resting state.
