Surgical bypass of superior and inferior mesenteric arteries with Dacron graft in a patient with acute on chronic mesenteric ischaemia with atherosclerotic complete occlusion of the infrarenal aorta.

A 67-year-old male presented to us with symptoms of postprandial abdominal pain for the last 3 months and was not able to take meals for the last month. The computed tomography (CT) angiogram showed complete occlusion in the coeliac artery (CA), superior mesenteric artery (SMA) and inferior mesenteric artery (IMA) with complete occlusion of infrarenal aorta and bilateral iliac arteries. While waiting for elective surgical mesenteric bypass, patient suddenly developed signs of peritonitis for which emergency surgery was done using a Dacron bifurcated graft 12 × 6 mm size.

Persistent left superior vena cava-An alternative feasible technique during Senning procedure.

Although rarely performed today in most centers, Senning procedure continues to be a good option for patients with transposition of great arteries presenting late with either regressed left ventricle or pulmonary hypertension. There are many subsets of patients including those having deficient atrial septal tissue, situs inversus, dextrocardia, and atrial isomerism which require complex modifications of technique. One such subset is patients having bilateral superior vena cavae (SVC), which requires coronary sinus cutback and creating a wide flap for the posterior venous baffle which unduly increases the complexity of the surgery.

Evaluating upper lip changes during smiling and at rest in Indian population.

Context: Smile aesthetics is one of the major goals to be achieved after orthodontic mechanotherapy as it visibly displays the results of orthodontic treatment. Although orthodontic retainers aid in maintaining post-treatment occlusion, soft tissue function and aesthetics, appropriate knowledge of smile changes with age can help orthodontists to obtain stable and aesthetically appealing treatment results.

Aim: To assess and quantify soft tissue changes in the upper lip in vertical dimension at both repose and maximum smiling and to evaluate changes occurring with the smile index and upper lip with age and sex in subjects of Indian origin.

Stress distribution patterns in mini-implant and bone in the infra-zygomatic crest region at different angulations: A finite element study.

Purpose: To evaluate, using the finite element method (FEM), von Mises stress patterns produced both in a mini-implant (MI) and the infra-zygomatic crest region (IZC) at different placement angles and force magnitudes.

Material And Methods: FEM modeling of an infra-zygomatic crest MI, of dimensions 2 mm × 12 mm, was designed and placed in the IZC bone. The MI was inserted at 50°, 60°, 70°, 80°, and 90° angulations to the IZC surface.

Comparative study of palatal rugae pattern in class II div 1 and class I individuals.

Aims: To determine if the palatal rugae have a characteristic pattern in untreated class II div 1 malocclusions compared to normal class I occlusions, and to provide a valuable insight whether palatal rugae can be taken up as additional criteria for classifying malocclusions.

Materials And Methods: The study was conducted on initial maxillary dental casts of 24 individuals with untreated class II div 1 malocclusion with an overjet of minimum of 5mm, of whom 12 were females and 12 were males, with age ranging from 16 to 24 years and compared with Class I patients casts.

Results: There was no statistically significant difference in the mean intermolar widths of the two groups.

Adherence of Streptococcus mutans and Candida albicans to different bracket materials.

Objective: To quantify the adherence of Streptococcus mutans and Candida albicans on brackets made of stainless steel, plastic, ceramic, titanium, and gold, and to evaluate the various sites of adherence of these microorganisms with scanning electron microscopy (SEM).

Materials And Methods: Brackets made of stainless steel, plastic, ceramic, titanium, and gold were used. The adherence of S.

Oral Health-Related Quality of Life (OHQoL) among adolescents seeking orthodontic treatment.

Aim: The aim of this study was to assess the effect of different orthodontic treatment needs on the OHQoL of adolescents.

Materials And Methods: 200 subjects (100 males and 100 females), 11 to 15 years of age were recruited for the study. OHQoL was assessed with the short form of the oral health impact profile (OHIP-14), and malocclusion severity was assessed with the index of orthodontic treatment need (IOTN).

Finite element analysis of dental implant as orthodontic anchorage.

Aim: The purpose of this three-dimensional (3D) finite element study was to investigate orthodontic loading simulation on a single endosseous implant and its surrounding osseous structure, to analyze the resultant stresses and to identify the changes in the bone adjacent to the implant following orthodontic loading.

Materials And Methods: Two models were constructed using finite element method consisting of endosseous dental implant and the surrounding bone. In the first model, the contact between the implant and the bone was simulated showing no osseointegration, while the second model showed 100% osseointegration.

Apical force distribution due to orthodontic forces: a finite element study.

Aim: This finite element study was conducted to calculate the distribution of stresses in the periodontal ligament when various orthodontic forces were applied, with emphasis on the effect on root apex.

Materials And Methods: An in vitro finite element method was used to construct a three-dimensional finite element model of a maxillary central incisor, its periodontal ligament and alveolar bone was constructed on the basis of average anatomic morphology. To this model, five types of orthodontic forces namely tipping, bodily movement, intrusion, extrusion and rotations were applied at various points on the crown of the tooth model.