Oven for heating a dental object

Patent metadata

Field	Value
Publication number	US-12516884-B2
Application number	US-202218046429-A
Country	US
Kind code	B2
Filing date	Oct 13, 2022
Priority date	Oct 14, 2021
Publication date	Jan 6, 2026
Grant date	Jan 6, 2026

Abstract

An oven (100) for heating a dental object (101), having a chamber (103) for receiving the dental object (101); a radiation source (105) for emitting radiation having a wavelength smaller than 350 nm into the chamber (103); and heating means (113) for heating the dental object (101) in the chamber (103).

First claim

The invention claimed is:

1 . An oven ( 100 ) for heating a dental object ( 101 ), comprising:
a chamber ( 103 ) for receiving the dental object ( 101 ); a radiation source ( 105 ) for emitting radiation having a wavelength smaller than 350 nm into the chamber ( 103 ); a heating source ( 113 ) separate from the radiation source ( 105 ) for heating the dental object ( 101 ) in the chamber ( 103 ); a controller ( 119 ) for controlling the radiation source ( 105 ) and the heating source ( 113 ); and an electronic camera ( 125 ) for detecting a color value of the dental object ( 101 ); wherein the controller ( 119 ) is configured to activate the radiation source ( 105 ) and the heating source ( 113 ) simultaneously or with a time delay between first activating the radiation source ( 105 ) followed by activating the heating source ( 113 ).

2 . The oven ( 100 ) according to claim 1 ,
wherein the heating source ( 113 ) is configured to heat the dental object ( 101 ) to a temperature up to 1200° C.

3 . The oven ( 100 ) according to claim 1 ,
wherein the controller ( 119 ) comprises a learned algorithm for controlling the radiation source ( 105 ) and/or the heating source ( 113 ).

4 . The oven ( 100 ) according to claim 1 ,
wherein the oven ( 100 ) is configured to terminate a heating of the dental object ( 101 ) when the dental object ( 101 ) has reached a predetermined color value.

5 . The oven ( 100 ) according to claim 1 ,
wherein the oven ( 100 ) comprises a cooling means ( 123 ) for cooling the heated dental object ( 101 ).

6 . The oven ( 100 ) according to claim 1 ,
wherein the heating source ( 113 ) comprises an infrared radiation source, a laser radiation source, a microwave radiation source or an induction radiation source.

7 . The oven ( 100 ) according to claim 1 ,
wherein the oven ( 100 ) comprises a moving means ( 111 ) comprising a turntable, movable table or a mechanical arm for moving the dental object ( 101 ) in front of the heating source ( 105 ) and/or the radiation source.

8 . A method of heating a dental object ( 101 ), comprising the steps in the following order:
receiving (S 101 ) the dental object ( 101 ) in a chamber ( 103 ); emitting (S 102 ) radiation having a wavelength smaller than 350 nm into the chamber ( 103 ) through a radiation source ( 105 ); heating (S 103 ) the dental object ( 101 ) in the chamber ( 103 ) by a heating source ( 113 ); and detecting a color value of the dental object ( 101 ) using an electronic camera ( 125 ).

9 . The method according to claim 8 ,
wherein an intensity of the radiation source ( 105 ) and a temperature of the heating source ( 113 ) are time controlled.

10 . The method according to claim 8 ,
wherein the radiation source ( 105 ) and heating source ( 113 ) are activated simultaneously or with a time delay.

11 . The method according to claim 8 ,
wherein heating of the dental object ( 101 ) is terminated when the dental object ( 101 ) has reached a predetermined color value.

Assignees

• Ivoclar Vivadent Ag

Inventors

• Ritzberger Christian
• Rampf Markus
• Dittmer Marc
• Niedrig Christian

Classifications

• F27D21/00

  Arrangement of monitoring devices; Arrangement of safety devices · CPC title

• A61C2201/002

  using colour effect, e.g. for identification purposes · CPC title

• A61C19/003

  Apparatus for curing resins by radiation · CPC title

• A61C13/20

  Methods or devices for soldering, casting, moulding or melting {(A61C13/04, A61C13/081 take precedence)} · CPC title

• A61C13/082

  Cosmetic aspects, e.g. inlays; Determination of the colour (A61C19/10 takes precedence) · CPC title