Abstract: A sheet-shape adhesive preparation for promoting tooth-movement in orthodontics comprising a layer of a pharmaceutical composition containing as the active ingredient a prostaglandin (e.g. prostaglandin E.sub.1, prostaglandin E.sub.2, and prostaglandin F.sub.2.alpha.) in admixture with one or more high molecular weight compounds and a flexible base sheet, a process for the preparation thereof, and a method for promoting tooth-movement in orthodontics by applying the sheet-shape adhesive preparation to the mucous membrane of gingiva. Said preparation can be kept for a long period of time without being dissolved in saliva and without irritation or unpleasant feeling when applied to the mucous membrane of gingiva and hence can show the tooth-movement activity of the active prostaglandin for a long period of time.

Abstract: A sheet-shape adhesive preparation for promoting tooth-movement in orthodontics comprising a layer of a pharmaceutical composition containing as the active ingredient a prostaglandin (e.g. prostaglandin E.sub.1, prostaglandin E.sub.2, and prostaglandin F.sub.2.alpha.) in admixture with one or more high molecular weight compounds and a flexible base sheet, a process for the preparation thereof, and a method for promoting tooth-movement in orthodontics by applying the sheet-shape adhesive preparation to the mucous membrane of gingiva. Said preparation can be kept for a long period of time without being dissolved in saliva and without irritation or unpleasant feeling when applied to the mucous membrane of gingiva and hence can show the tooth-movement activity of the active prostaglandin for a long period of time.

Abstract: An orthodontic appliance for correcting teeth in a patient's mouth, has a bracket having a slot or groove and adapted to be secured to a tooth of the patient by means of an adhesive, a correcting wire placed in the slot or groove of the bracket, a magnet body having at least one magnet element, and a holder detachably attached to the bracket for holding the magnet body.

Abstract: A dental cleaning composition comprising about 0.01 to about 30% by weight, based on the composition, of a hydrotalcite compound of the following formulaMg.sub.1-x Al.sub.x (OH).sub.2+x-ny A.sub.y.sup.n-.mH.sub.2 OwhereinA.sup.n- represents an anion having a valence ofn, x is a positive number represented by 0<x<0.5,y is a positive number represented by 0<y.ltoreq.0.5, andm is a positive number represented by 0<m<2,and a dentally acceptable carrier or diluent; and a method for dental cleaning with the use of the above composition.