The reported incidence of ectopic eruption ranges from 2 to 4.3% of the population.^ Treatment modalities have been divided into two categories: interproximal wedging and distal tipping. Interproximal wedging is indicated when there is minimal impaction of the first permanent molar on the distal aspect of the second primary molar. When the impaction is severe, distal tipping techniques are requ...

We report the histological findings of a reconstructed calcar region four years after femoral impaction bone grafting using metal wire mesh for a case with massive defect of the proximal part of the femur. Thin cortical bone was formed just beneath the metal wire mesh and viable trabecular bone containing a small amount of granulation tissue was observed even at the bone-cement interface. Almos...

this cross-sectional study is conducted to determine the prevalence of asymptomatic cervical spine subluxation in rheumatoid arthritis patients by plain radiographs and its relation to demographic and clinical characteristics, disease activity measures and medications. 100 rheumatoid arthritis patients (18 male and 82 female) were selected randomly, according to the american college of rheumato...

In clinical dentistry third molar have great prevalence. These teeth are commonly found to be impacted and sometimes it’s may absent in the oral cavity. The aim of the study was to evaluate the prevalence of different pattern, angulation of third molar impaction and third molar agenesis between different ages of different races. Several electronic databases such as Google Scholar, PubMed, Web o...

Lymphocytic esophagitis is a chronic condition that has been described in the literature; however, there is little information describing its characteristics and treatment. We present a case of lymphocytic esophagitis that was identified following food impaction. Repeat esophagogastroduodenoscopy (EGD) with biopsy showed a marked decrease in lymphocytic infiltration after a 6-week course of twi...

A broad range of variation exists in the normal eruption times of primary and permanent teeth in humans. However, normality is usually associated with bilateral symmetry. Furthermore, cases where eruption time is grossly beyond the extremes of normalcy may be considered to represent a pathological state [1]. Radiography plays an important part in determining the normality of tooth eruption with...

Impaction of mandibular second permanent molars is a rare occurrence, with prevalence rates reported to be between 0.65% and 2.0%. In the absence of systemic conditions, impactions are usually unilateral. There appears to be no consensus as to the optimal treatment for impacted mandibular second molars and treatment plans will be based upon the individual case. Treatment may involve orthodontic...

One of the most common indications for endoscopic retrograde cholangiopancreatography (ERCP) is choledocholithiasis – the occurrence of stones in the common bile duct (CBD). However, in approximately 5% to 10% of cases, the procedure fails, especially in a patient with large or impacted stones [1]. An uncommon adverse event during ERCP with CBD stone clearance is impaction of the basket-stone c...

Foreign body ingestion is a common condition, especially among children who represent 80% of these emergencies. The most frequently ingested foreign bodies in children are coins, toys, magnets and batteries. Most foreign body ingestions in adults occur while eating, leading to either bone or meat bolus impaction. Flexible endoscopy is the therapeutic method of choice for relieving food impactio...

Counterflow virtual impaction is used to inertially separate cloud elements from un-activated aerosol. Previous airborne, ground-based and laboratory studies using this technique exhibit artifacts that are not fully explained by impaction theory. We have performed laboratory studies that show small particles can be carried across the inertial barrier of the counterflow by collision and/or coale...