Kao Corporation

Ryozo Nakai

Yasuteru Eguchi

Yuichi Hioki

Tetsuji Iwasaki

Kazushi Oshino

Atsushi Yamagishi

Yoshiaki Fujikura

Koji Endo

Katsumi Kita

Yasushi Shioya

Shigeto Kayane

Yoshiyuki Muroi

Shigeo Inoue

Masato Hoshi

Takao Okajima

Kouji Maeda

Sumio Arai

Apparatus for measuring transpiration amount

The dentifrice composition includes capsule particles containing agar as a main component of a coat-forming substance and having an average particle size of from 0.3 to 3 mm, and vehicles for use in oral cavity. It may further contain nonionic surfactants and/or water-insoluble abrasive granules as desired.

Dentifrice composition

A composition for use in the oral cavity is disclosed. The composition comprises (A) an antibacterial compound represented by the following general formula (1),

Composition for use in oral cavity

A composition for use in the oral cavity comprising a monophosphate represented by the following general formula (1), ##STR1## wherein R.sup.1 is a linear or branched alkyl or alkenyl group with 6 to 20 carbon atoms, and may have a substituted fluorine atom; one of X.sup.1 or X.sup.2 is a basic amino acid residual group, while the other is a hydrogen atom, an alkali metal, an ammonium, an alkyl amine, an alkanol amine, or a basic amino acid residual group; and n is an integer from 0 to 4. The composition exhibits a superior action in protecting the tooth surface, is stable, and has a pleasant taste.

A method of desensitizing hypersensitive dentin is disclosed. The method comprises treating teeth of patients suffering from hypersensitive dentin with a colloid produced by mixing (a) a salt of polyvalent metal and (b) a polyol phosphate and/or a water-soluble salt thereof. The colloid can constrict or occlude dentinal tubules in the tooth dentin, exhibiting a continuous effect on the desensitization of hypersensitive dentin owing to the very high absorptivity of the colloid to teeth. The colloid does not impair taste, and does not produce precipitate near the neutral region, enabling it to be used safely.

Method of desensitizing hypersensitive dentin

Disclosed herein is a wood preservative composition comprising the following ingredients (A) and (B):

Wood preservative composition

Growing community of inventors

Utsunomiya, Japan

Ryozo Nakai