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1. WO2019224693 - METHOD FOR TEETH CLEANING BY MEANS OF A COMPOSITION IN THE FORM OF POWDER BASED ON HYDROXYAPATITE

Publication Number WO/2019/224693
Publication Date 28.11.2019
International Application No. PCT/IB2019/054144
International Filing Date 20.05.2019
IPC
A61K 6/00 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
6Preparations for dentistry
A61K 8/25 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
19containing inorganic ingredients
25Silicon; Compounds thereof
A61K 8/65 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
30containing organic compounds
64Proteins; Peptides; Derivatives or degradation products thereof
65Collagen; Gelatin; Keratin; Derivatives or degradation products thereof
CPC
A61C 17/02
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
17Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses
02Rinsing or air-blowing devices, e.g. using fluid jets ; or comprising liquid medication;
A61C 17/022
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
17Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses
02Rinsing or air-blowing devices, e.g. using fluid jets ; or comprising liquid medication;
022Air-blowing devices ; , e.g. with means for heating the air
A61C 3/025
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
3Dental tools or instruments
02Tooth drilling or cutting instruments; Instruments acting like a sandblast machine
025Instruments acting like a sandblast machine, e.g. for cleaning, polishing or cutting teeth
A61K 2800/412
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
2800Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
40Chemical, physico-chemical or functional or structural properties of particular ingredients
41Particular ingredients further characterized by their size
412Microsized, i.e. having sizes between 0.1 and 100 microns
A61K 8/0275
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
02characterised by special physical form
0241Containing particulates characterized by their shape and/or structure
0275Containing agglomerated particulates
A61K 8/24
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
19containing inorganic ingredients
24Phosphorous; Compounds thereof
Applicants
  • MECTRON S.P.A. [IT]/[IT]
Inventors
  • COLLETTI, Chiara
  • SIVIERI, Martina
  • ROVERI, Norberto
  • LELLI, Marco
  • DE FAVERI, Sara
  • MINUTOLI, Saverio
Agents
  • BOTTERO, Carlo
Priority Data
10201800000556121.05.2018IT
Publication Language English (en)
Filing Language Italian (IT)
Designated States
Title
(EN) METHOD FOR TEETH CLEANING BY MEANS OF A COMPOSITION IN THE FORM OF POWDER BASED ON HYDROXYAPATITE
(FR) PROCÉDÉ DE NETTOYAGE DENTAIRE AU MOYEN D'UNE COMPOSITION SOUS LA FORME D'UNE POUDRE À BASE D'HYDROXYAPATITE
Abstract
(EN) Method for teeth cleaning which comprises a step of applying on the dental surface a jet comprising micrometric particles of silica gel incorporating hydroxyapatite aggregates, wherein the hydroxyapatite aggregates have an average diameter (d50) from 50 nm to 500 nm, and the micrometric particles of silica gel have an average diameter (d50) from 1 pm to 150 pm. The incorporation of hydroxyapatite aggregates in the silica gel allows reducing undesired aggregating tendency of the hydroxyapatite and obtaining a biomimetic and bioactive composition.
(FR) L'invention concerne un procédé de nettoyage dentaire qui comprend une étape consistant à appliquer sur la surface dentaire un jet comprenant des particules micrométriques de gel de silice renfermant des agrégats d'hydroxyapatite, les agrégats d'hydroxyapatite ayant un diamètre moyen (d50) allant de 50 nm à 500 nm, et les particules micrométriques de gel de silice ayant un diamètre moyen (d50) allant de 1 pm à 150 pm. L'incorporation d'agrégats d'hydroxyapatite dans le gel de silice permet de réduire la tendance à l'agrégation indésirable de l'hydroxyapatite et d'obtenir une composition biomimétique et bioactive.
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