Assessment of the soft tissue volumetric changes following acellular dermal matrix grafts with cone beam computerized tomography

PubMedID: 25279398Objective: The aim of this study was to use cone beam computerized tomography (CBCT), which consistently allowed the determination of the dimensions of the soft tissue, to evaluate acellular dermal matrix grafts (ADMG) used to increase gingival soft tissue thickness (GSTT). Method and Materials: In total, 90 gingival defects were included in the study. Surgical procedures were performed to augment the gingival tissue with ADMG. While GSTT measurements were assessed at baseline and 6, 12, and 18 months post-surgery, ADMG measurements were performed with CBCT at 6, 12, and 18 months post-surgery. Results: All parameters showed statistically significant differences between time intervals. In the ADMG-treated sites, the baseline GSTT was 1.00 ± 0.37 mm and the final thickness was 1.66 ± 0.34 mm. The 6-month measurement of ADMG was 0.79 ± 0.08 mm, and the final measurement was 0.11 ± 0.09 mm. Conclusion: High-quality images of the GSTT and ADMG can be consistently obtained with CBCT. The present findings indicate that soft tissue augmentation can be achieved in gingival defects with the use of ADMG. © Quintessenz

Left cervical aortic arch with proximal obstruction

Cervical aortic arch is a rare congenital anomaly. We present a case of left-sided cervical aortic arch, found in a patient with mitral regurgitation, mitral stenosis, and a regurgitant bicuspid aortic valve. There was atypical obstruction proximally within the arch. The obstructive segment was resected, and corrected by performing an end-to-side anostomosis. Mitral valvoplasty was performed in the same surgical procedure. To the best of our knowledge, a cervical arch has not previously been described with such atypical obstruction, and in association with multiple lesions involving the left heart

The periodontal disease status of the historical population of assos

The science of anthropology obtains data on health, disease and death from ancient populations. Research on the skeletal remains of human teeth and surrounding tissues provides useful information on the evolutionary perspective of dental and periodontal diseases. The aim of this study was to determine the prevalence and severity of periodontal diseases in the skeletal remains of 33 Assos inhabitants of the 4th century BC. Three age groups were constituted for the studied population. Periodontal disease status was determined based on the textural and architectural variations of the interdental septum and the extent of bone loss. It was found that the prevalence of periodontal diseases increased with age. The severity of periodontal bone loss also increased with age and the mean alveolar bone loss between age groups was statistically significant (P=0.004). This analysis of the dental health of ancient populations provides insights into the aetiology, patterns and distribution of periodontitis, which has a very complex disease pathogenesis. Copyright © 2005 John Wiley & Sons, Ltd

Mitral perforation: a rare cause of congenital mitral regurgitation

In a 4-year-old boy with severe mitral regurgitation, cross sectional echocardiography combined with Doppler interrogation confirmed the presence of isolated perforation of the aortic leaflet of the mitral valve. The perforation was closed with a patch of fresh autologous pericardium. Serial echocardiograms taken postoperatively showed no regurgitation across the mitral valve

2 C-15 BROMOALLENES FROM THE RED ALGA LAURENCIA-OBTUSA

From the red alga Laurencia obtusa, besides the known compounds obtusallene I and laurenyne, two new C-15 bromoallenes were isolated and their structures established by spectral analysis and X-ray crystallography

Prenatal echocardiographic diagnosis of situs inversus totalis and transposition of the great arteries - A case report

A case of situs inversus totalis and transposition of the great arteries (TGA) was diagnosed prenatally at 25 weeks' gestation. Postnatal echocardiographic examination confirmed the antenatal findings. This case underscores the importance of recognizing situs abnormalities during obstetric and fetal echocardiographic examination, as they are often associated with cardiac anomalies. Accurate prenatal diagnosis of structural heart defects is extremely important in family counselling and in planning obstetric and postnatal treatment

Perforation risks associated with the use of Masserann endodontic kit drills in mandibular molars

PubMedID: 15088037Purpose The use of Masserann kit is a frequently recommended technique for the removal of canal obstructions. Although this technique is usually successful, it may cause excessive removal of dentin tissue in root canals. The aim of this study is to evaluate the perforation risk and the remaining dentin thickness in mesial canals of mandibular molars following the use of Masserann kit. Study design Fifty-three extracted human mandibular molars were selected for the study. The teeth were separated into 3 groups based on the degree of curvature of the root canals. By using Radio Visio Graphy and Coral Draw 8.0 software packages, the dentin/cement thickness of root canal was measured before and after the use of Masseran kit drills. Results In the severely and moderately curved mesial root of mandibular molars, the Masserann Kit increased the risk of creating thin or perforated walls. Additionally, after 7.5mm depth of drilling, the percentage of perforations increased in all groups. Conclusions With respect to endangering the dentinal walls towards the apex of root canals, Masserann kit drills were found to increase the risk of perforations in curved canals and in deep preparations

Postoperative pain after endodontic retreatment: Single- versus two-visit treatment

PubMedID: 15472665Objective The purpose of this clinical study was to determine the effect of 1- or 2-visit root canal treatment on the postoperative pain in the retreatment cases. Study design Two hundred eighteen cases that required retreatment were included in the study. Obturated and unfilled canal space and the status of periapical tissues were evaluated according to the PAI index. The patients were subcategorized in regard to the presence or the absence of preoperative pain. Approximately half of each category was treated in 1 appointment. After removing the previous root canal obturation materials and biomechanic preparation of root canals, the teeth in the 1-visit group were obturated at the first appointment by using AH 26 sealer and laterally compacted gutta-percha, and those in the 2-visit group were medicated with calcium hydroxide-chlorhexidine combination and then closed with a temporary filling material. One week after the initial appointment, patients were asked about the occurrence of postoperative pain. The level of discomfort was rated as no pain, mild pain, moderate pain, or severe pain (flare-up). Data were statistically analyzed using the chi-squared and Fischer exact tests. Results Eight patients from the 1-visit group and 2 patients from the 2-visit group had flare-ups. There was a statistical difference between the groups (P < .05). Two-visit root canal treatment was more effective in completely eliminating pain than 1-visit treatment of previously symptomatic teeth (P < .05). Conclusions Two-visit endodontic treatment with intracanal medication was found to be effective in reducing postoperative pain of previously symptomatic teeth and decreased the number of flare-ups in all retreatment cases

unique case of Turner syndrome accompanying prolactinoma and unexpected elongated styloid process: Clinical and cone-beam computed tomographic features

Turner syndrome (TS) is one of the most common chromosomal abnormalities, with an estimated frequency among female live births of 1/2,000-3,000. The syndrome is characterized by the partial or complete absence of one X chromosome (45,X karyotype). We reported a unique case of a 40-year-old woman with TS accompanying unexpected elongated styloid process specific to Eagle syndrome (ES) and followed up-prolactinoma. The present article is the first report to define the cone-beam computed tomographic (CBCT) features of TS accompanying ES. Patients with TS carry various risks that make treatment more complicated; thus advanced imaging techniques for proper treatment and follow-up are extremely important. In the light of CBCT examination, craniofacial abnormalities specific to TS and accompanying syndromes such as the crowding of teeth especially in the maxillary anterior region caused by maxillary narrowness, micrognatic maxilla and mandible, relative mandibular retrusion, malocclusion, open-bite, and an elongated styloid process (length of 32.7 mm) on the right side were illustrated in detail. © 2013 by Korean Academy of Oral and Maxillofacial Radiology