Early diagnosis is associated with improved clinical outcomes in benign esophageal perforation: an individual patient data meta-analysis.

Background: Time of diagnosis (TOD) of benign esophageal perforation is regarded as an important risk factor for clinical outcome, although convincing evidence is lacking. The aim of this study is to assess whether time between onset of perforation and diagnosis is associated with clinical outcome in patients with iatrogenic esophageal perforation (IEP) and Boerhaave's syndrome (BS).

Methods: We searched MEDLINE, Embase and Cochrane library through June 2018 to identify studies.

A two-short-implant-supported molar restoration in atrophic posterior maxilla: A finite element analysis.

Purpose: The aim of this study was to investigate the stress distribution of 2-short implants (2SIs) installed in a severely atrophic maxillary molar site.

Materials And Methods: Three different diameters of internal connection implants were modeled: narrow platform (NP), regular platform (RP), and wide platform (WP). The maxillary first molars were restored with one implant or two short implants.

Capecitabine and cisplatin chemotherapy (XP) alone or sequentially combined chemoradiotherapy containing XP regimen in patients with three different settings of stage IV esophageal cancer.

Background: The 1997 staging system for esophageal carcinoma subdivided distant metastatic disease (M1) into nonregional lymph node metastases (M1a) and other metastases (M1b). To determine the relevance of this classification system, we investigated the efficacy and toxicity of capecitabine/cisplatin (XP) chemotherapy alone or in combination with radiotherapy.

Methods: We identified 74 patients with M1 disease treated at Asan Medical Center from January 2003 to December 2005.

Value of complete metabolic response by (18)F-fluorodeoxyglucose-positron emission tomography in oesophageal cancer for prediction of pathologic response and survival after preoperative chemoradiotherapy.

We aimed to assess the ability of (18)F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) scan to predict pathologic complete response (CR) and survival in patients with oesophageal cancer treated with preoperative chemoradiotherapy (CRT). The study cohort consisted of 62 consecutive patients with operable oesophageal cancer who were treated with preoperative CRT followed by oesophagectomy. Endoscopy, computed tomography (CT) and PET were performed before and after CRT.

Effects of two preparation designs and pontic distance on bending and fracture strength of fiber-reinforced composite inlay fixed partial dentures.

Statement Of Problem: Joint fractures observed in Targis/Vectris inlay adhesive fixed restorations may be related to the preparation design.

Purpose: This in vitro study investigated the effects of the proximal tooth preparation design and the pontic distance on the fracture strength and the amount of bending of fiber-reinforced inlay adhesive fixed partial dentures.

Materials And Methods: Forty extracted premolars and 40 molars were embedded in a PMMA resin to represent a premolar and molar mesiodistal separation distance of 7 mm and 11 mm, respectively.

Marginal accuracy and fracture strength of ceromer/fiber-reinforced composite crowns: effect of variations in preparation design.

Statement Of The Problem: Targis/Vectris restorations provide excellent esthetics and clinical success; however, the relationship of their marginal accuracy and fracture strength to the tooth preparation design requires further investigation.

Purpose: The aim of this study was to evaluate the effect of variations in tooth preparation design on the marginal accuracy before and after cementation and on the fracture strength of the ceromer/fiber reinforced composite crown.

Material And Methods: Three metal dies with varying total occlusal convergence angles (6 degrees, 10 degrees, 15 degrees) were prepared.