BACKGROUND Protraction facemask has been advocated for treatment of class III malocclusion with maxillary deficiency. Studies using tooth-borne rapid palatal expansion (RPE) appliance as anchorage have experienced side effects such as forward movement of the maxillary molars, excessive proclination of the maxillary incisors, and an increase in lower face height. A new Hybrid Hyrax bone-anchored...

(Kemp JP, Skoner D, Szefler SJ, et al. Ann Allergy Asthma Immunol. 1999;83:231–239). This study retrospectively examines the data more closely and demonstrates that efficacy and safety are not dependent on whether administration is by facemask or mouthpiece. The results here provide reassuring data for clinicians treating children with persistent asthma who are too young to use mouthpieces. Sim...

perform bag mask ventilation on a daily basis, prior to laryngeal mask airway (LMA) insertion and tracheal intubation? It is a common criticism that (over)use of the LMA means trainees perform less intubations and I welcome the recommendation that trainees should be preferentially attached to lists where facemask anaesthesia and intubations occur. Trainees moving between theatres will also incr...

The facial growth of Class III malocclusion worsens with age, in this case, the early orthopedic treatment, providing facial balance, modifying the maxillofacial growth and development. A 7.6-year old boy presented with Class III malocclusion associated with anterior crossbite; the mandible was shifted to the right and the maxilla had a transversal deficiency. Rapid maxillary expansion followed...

To the Editor:—In a recent letter, Erickson and Lanier reported on a useful method to preoxygenate claustrophobic patients who will not tolerate a facemask, by having the patients hold the L-connector of the anesthesia circuit in their mouth. They may be interested to know that an identical method, complete with an almost identical photograph, was published as a correspondence by Keifer and Sti...

A prospective cohort study was conducted to estimate the incidence of acute respiratory infections (ARI) among hajjis registered at primary health care centres of Riyadh. Out of 1027 hajjis, 39.8% developed symptoms of ARI. The incidence of ARI was not statistically significantly associated with age, sex, educational status or smoking. The risk of illness was significantly higher among diabetic...

It was predicted that due to the optical distortion produced.by wearing a facemask, the constancy of visual position would not be maintained under water, i. e., stationary objects should appear to move when the head is moved. Subjects made magnitude estimates of object movement in both air and water. Twice as much movement occurred in water as in air. Two underwater activities, head rotation wh...

To the Editor:—In a recent letter, Erickson and Lanier reported on a useful method to preoxygenate claustrophobic patients who will not tolerate a facemask, by having the patients hold the L-connector of the anesthesia circuit in their mouth. They may be interested to know that an identical method, complete with an almost identical photograph, was published as a correspondence by Keifer and Sti...

Traditionally, there are two main methods of mask placement during face mask ventilation: one handed (CE) grip and two handed grip (THT). One handed grip is limited by air leaks between mask and patients face on the side opposite to stabilizing hand. Two handed grips provide protection against air leak but require second provider to deliver tidal volumes when using a self inflating bag or anest...

INTRODUCTION The aim of this prospective clinical study was to evaluate the skeletal, dentoalveolar, and soft-tissue effects of maxillary protraction with miniplates compared with conventional facemask therapy and an untreated Class III control group. METHODS Forty-five subjects who were in prepubertal or pubertal skeletal growth periods were included in the study and divided into 3 groups of...