Method Of Manufacturing A Mouthpiece Toothbrush And Mouthpiece Toothbrush

Patent metadata

Field	Value
Publication number	US-2022322817-A1
Application number	US-202217711520-A
Country	US
Kind code	A1
Filing date	Apr 1, 2022
Priority date	Apr 8, 2021
Publication date	Oct 13, 2022
Grant date	—

Abstract

A method for producing a mouthpiece toothbrush is provided, in which at least one dental arch of the patient for whom the toothbrush is intended is scanned to generate scan data, or an impression of the dental arch is made. Based on the scan data or the then digitised impression, the dental arch space occupied by the dental arch is recorded. A bristle space is constructed around the at least one dental arch, and a toothbrush moulded piece is calculated, the surface of which facing the dental arch is determined by the dental arch space plus the bristle space. The surface is covered with a bristle carpet.

First claim

1 . A method for manufacturing a mouthpiece toothbrush comprising
scanning at least one dental arch or an impression of the dental arch of a patient to generate scan data, based on the scan data, detecting a dental arch space occupied by the dental arch, constructing a bristle space, around the at least one dental arch, calculating a size and shape of a toothbrush moulded piece having a surface facing the dental arch determined by the dental arch space and the bristle space, and covering the surface of the moulded piece with a bristle carpet.

2 . The method according to claim 1 ,
wherein the toothbrush moulded piece is customized for each patient and the bristle carpet is a generic with respect to bristle length, bristle thickness, bristle orientation and/or bristle base.

3 . The method according to claim 1 ,
wherein the dental arch space comprises an area of the patient's teeth and adjacent gingiva, and wherein the bristle space extends beyond the teeth towards the gingiva, labially, buccally and orally.

4 . The method according to claim 3 ,
wherein the bristle space extends beyond a region of the teeth and exclusively occlusally/incisally of the gingival region.

5 . The method according to claim 1 ,
wherein the bristle carpet comprises a bristle base in which bristles are anchored, and/or the bristle base and bristles of the bristle carpet are formed in a single piece, where the bristles are configured to face the dental arch when the mouthpiece toothbrush is in position in a patient.

6 . The method according to claim 5 ,
wherein the bristles of the bristle carpet extend through the bristle space and abut a tooth arch space, and project into the dental or tooth arch space by a predetermined amount in a range of 0.05 mm to 0.5 mm.

7 . The method according to claim 1 ,
wherein the bristle space has an equal or substantially equal thickness over a longitudinal extension of a surface thereof in a range of 1.5 mm to 4 mm, a range of 2 to 3 mm or at or about 2.5 mm.

8 . The method according to claim 1 ,
wherein the bristle carpet fills the bristle space and has a plurality of bristles which are mounted in the bristle base oriented perpendicularly or substantially perpendicularly to a tooth surface.

9 . The method according to claim 1 ,
wherein the bristle carpet has a plurality of distributed bristles, the bristle carpet comprising a gingival portion extending obliquely to the surface facing the dental arch in the gingival direction, and an occlusal/incisal portion extending obliquely to the surface facing the dental arch in the occlusal/incisal direction.

10 . The method according to claim 1 ,
wherein the toothbrush moulded piece projects in the region of the gingival margin in the direction of teeth, forming an intensive cleaning region, and gingival margin bristles extend from the intensive cleaning region both in the direction of the teeth and in the direction of gingiva.

11 . The method according to claim 1 ,
wherein the toothbrush moulded piece is produced by 3D printing and the bristle carpet is applied to an occlusal inner surface of the toothbrush moulded piece with a biocompatible adhesive.

12 . The method according to claim 1 ,
wherein the bristle carpet is interchangeably mounted on or in the toothbrush moulded piece.

13 . The method according to claim 1 ,
wherein the toothbrush moulded piece has the shape of a double T-beam in cross-sectional view and is configured for simultaneous application to the patient's upper jaw and lower jaw.

14 . The method according to claim 1 ,
wherein at least one channel passes through the toothbrush moulded piece, with which the bristle carpet is placed under negative pressure in order to fix the bristle carpet by negative pressure.

15 . The method according to claim 1 ,
based on a plurality of mutually similar scan data, producing an individualised series of toothbrush moulded pieces followed by producing of series of mouthpiece toothbrushes using the toothbrush moulded pieces.

16 . A method of manufacturing a mouthpiece toothbrush comprising
scanning and digitizing at least one dental arch or an impression of the dental arch of a patient to generate scan data, detecting tooth arch space occupied by the at least one dental arch, constructing a bristle space of substantially constant thickness around the at least one dental arch, and calculating a toothbrush moulded piece size and shape having an area facing the tooth arch determined by the tooth arch space and the bristle space, and filling the bristle space with a standardised or individually manufactured bristle carpet.

17 . The method according to claim 16 ,
wherein the toothbrush moulded piece together with the bristle carpet is manufactured in one piece by additive manufacturing and the toothbrush moulded piece and the bristle carpet are manufactured from multiple materials with different degrees of hardness.

18 . The method according to claim 16 ,
wherein an injection mould or a vacuum casting mould is produced based on the scan data and the bristle carpet is also modelled in the data set as a negative mould using CAD software, and wherein the mouthpiece toothbrush is produced by injection moulding or by vacuum casting.

19 . A mouthpiece toothbrush comprising
a toothbrush moulded piece and a bristle carpet connected to the toothbrush moulded piece, wherein the toothbrush moulded piece is produced with scan data using additive manufacturing, and wherein the bristle carpet is applied or attached to the toothbrush moulded piece on the inside, at or adjacent to an inner cavity of the moulded piece.

20 . The mouthpiece toothbrush according to claim 19 ,
wherein a plurality of channels are formed on both an oral side and a vestibular side of the bristle space in the toothbrush moulded piece, and wherein a rinsing solution is introduced into a first part of the channels and is discharged from a second part, and wherein the toothbrush moulded piece has a plurality of internally formed channels, extending through the moulded piece from the vestibular to the oral side.

21 . The mouthpiece toothbrush according to claim 20 ,
wherein the moulded piece has, on the vestibular side of the channels, an adapter for connection to an oral rinsing device, with which the rinsing solution can be pumped into the internal channels of the toothbrush moulded piece for cleaning the interdental spaces.

22 . The mouthpiece toothbrush according to claim 19 ,
wherein the mouthpiece toothbrush is connected or connectable to a drive comprising a vibration generator, with which the mouthpiece toothbrush can be subjected to translatory and/or rotatory vibrations in a plurality of spatial axes, where said vibration generator is connected to a current sensor, with which its current consumption can be measured and signalled, which current consumption signals the cleaning resistance.

23 . A method for manufacturing a mouthpiece toothbrush comprising
scanning at least one dental arch or an impression of the dental arch of a patient to generate scan data, based on the scan data, detecting a dental arch space occupied by the dental arch, constructing a bristle space, around the at least one dental arch, calculating a size and shape of a toothbrush moulded piece having a surface facing the dental arch determined by the dental arch space and the bristle space and manufacturing the toothbrush moulded p

Assignees

• Ivoclar Vivadent Ag

Inventors

• John Hendrik
• Niedrig Christian
• Senti Theresa Sujata Maria
• Hauner-Westphal Martina
• Glebova Tatiana

Classifications

• A61C17/228

  Self-contained intraoral toothbrush, e.g. mouth-guard toothbrush without handle · CPC title

• A61C17/3481

  Vibrating brush body, e.g. by using eccentric weights · CPC title

• A61C17/0208

  combined with means providing suction (A61C17/0211 takes precedence) · CPC title

• A46B15/0012

  with a pressure controlling device · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title