Patents Assigned to Pac-Dent, Inc.
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Patent number: 12643287Abstract: A resin based material whose composition includes a light-curable mixture of monomers of no more than 35 wt. % of an ethoxylated difunctional bisphenol A dimethacrylate; of no more than 10 wt. % of a methacrylate monomer; of no more than 10 wt. % of a difunctional urethane acrylate; of no more than 0.1 wt. % of an optical brightener; of no more than 5 wt. % of silica particles having methacrylate functionalization layers and having an average particle size of less than about 200 nm; of having more than 40 wt. % of an inert glass; of no more than 15 wt. % of a heavy metal oxide; of no more than 2.5 wt. % of an ultraviolet/visible (UV/Vis) light-photo-polymerization initiator; a colorant; and a stabilizer.Type: GrantFiled: February 24, 2025Date of Patent: June 2, 2026Assignee: Pac-Dent, Inc.Inventors: Minhdang Son Nguyen, Daniel Wang
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Patent number: 12502247Abstract: Embodiments disclose a disposable protective assembly apparatus for a dental syringe body of a dental syringe. The apparatus is a combination of a disposable syringe tip and a disposable protective sleeve, the sleeve being pre-attached to the syringe tip, and the sleeve being in a pre-folded position to be quickly and easily slid over the dental syringe prior to a dental operation.Type: GrantFiled: October 10, 2023Date of Patent: December 23, 2025Assignee: Pac-Dent, Inc.Inventor: Daniel Wang
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Publication number: 20250281260Abstract: An endodontic microcannula system for evacuation of root canal contents from a root canal of a patient. The system includes a microcannula for insertion into the root canal, a handpiece for vibrating the microcannula while it is disposed within the root canal, and an irrigation fluid reservoir for supplying irrigation fluid to the root canal, an a vacuum source for drawing the fluid and root canal debris into the microcannula and out of the root canal.Type: ApplicationFiled: May 23, 2025Publication date: September 11, 2025Applicant: Pac-Dent, Inc.Inventor: Carlos Alberto Spironelli Ramos
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Patent number: 12402981Abstract: A prophy angle with a splatter guard. The splatter guard is provided in the form of a partial cylinder extending along the side of the prophy cup.Type: GrantFiled: May 5, 2025Date of Patent: September 2, 2025Assignee: Pac-Dent, Inc.Inventors: Daniel Wang, Chunyu Wang, Jian Li
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Publication number: 20250262024Abstract: A prophy angle with a splatter guard. The splatter guard is provided in the form of a partial cylinder extending along the side of the prophy cup.Type: ApplicationFiled: May 5, 2025Publication date: August 21, 2025Applicant: Pac-Dent, Inc.Inventors: Daniel Wang, Chunyu Wang, Jian Li
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Publication number: 20250187262Abstract: A resin based material whose composition includes a light-curable mixture of monomers of no more than 35 wt. % of an ethoxylated difunctional bisphenol A dimethacrylate; of no more than 10 wt. % of a methacrylate monomer; of no more than 10 wt. % of a difunctional urethane acrylate; of no more than 0.1 wt. % of an optical brightener; of no more than 5 wt. % of silica particles having methacrylate functionalization layers and having an average particle size of less than about 200 nm; of having more than 40 wt. % of an inert glass; of no more than 15 wt. % of a heavy metal oxide; of no more than 2.5 wt. % of an ultraviolet/visible (UV/Vis) light-photo-polymerization initiator; a colorant; and a stabilizer.Type: ApplicationFiled: February 24, 2025Publication date: June 12, 2025Applicant: Pac-Dent, Inc.Inventors: Minhdang Son NGUYEN, Daniel WANG
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Patent number: 12318259Abstract: A prophy angle with a splatter guard. The splatter guard is provided in the form of a partial cylinder extending along the side of the prophy cup.Type: GrantFiled: September 13, 2024Date of Patent: June 3, 2025Assignee: Pac-Dent, Inc.Inventors: Daniel Wang, Chunyu Wang, Jian Li
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Publication number: 20250090269Abstract: A prophy angle with a splatter guard. The splatter guard is provided in the form of a partial cylinder extending along the side of the prophy cup.Type: ApplicationFiled: September 13, 2024Publication date: March 20, 2025Applicant: Pac-Dent, Inc.Inventors: Daniel Wang, Chunyu Wang, Jian Li
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Publication number: 20240033039Abstract: Embodiments disclose a disposable protective assembly apparatus for a dental syringe body of a dental syringe. The apparatus is a combination of a disposable syringe tip and a disposable protective sleeve, the sleeve being pre-attached to the syringe tip, and the sleeve being in a pre-folded position to be quickly and easily slid over the dental syringe prior to a dental operation.Type: ApplicationFiled: October 10, 2023Publication date: February 1, 2024Applicant: Pac-Dent, Inc.Inventor: Daniel Wang
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Publication number: 20230363853Abstract: The present invention describes an endodontic high-performance polymer micro-capillary cannula for use with a dental tool having an ultrasonic/sonic energy generator, and providing concomitantly irrigation, activation of the irrigation liquid and evacuation of the root canal content. The micro-capillary cannula provides continuous delivery of an irrigant from the ultrasonic or sonic handpiece while vibrating inside canal, allowing the activation of the irrigant. Energy generated by an ultrasonic or sonic generator is translated into movement of the cannula to provide optimum cleaning to the root canal. Simultaneously, negative pressure is formed at the tip end of the cannula by a tubing connection at the proximal end of the cannula, which is connected to the suction dental unit. The evacuation at the end of the cannula helps irrigant movement from the coronal part of the canal to the apical part, while avoids apical extrusion of the irrigant.Type: ApplicationFiled: May 10, 2022Publication date: November 16, 2023Applicant: Pac-Dent, Inc.Inventors: Carlos Alberto Spironelli Ramos, Marcos Antionio Hungaro Duarte, Daniel Wang, Robert Yue
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Publication number: 20230320815Abstract: The invention describes an additional manufacturing method to improve the metallurgical properties of an endodontic file, which method customizes torsional and cyclic fatigue resistance behavior performance for separate files sizes. A heat-treatment file size tailored method accomplished after grinding the blank is disclosed aiming to improve the elasticity behavior of the specific file size based on its application during instrumentation protocol, also generating a colored oxidation layer on the working part surface of the file. The colored coded customized heat-treatment process will help the operator to identify the improved metallurgical properties behavior of each file, and decide the best use of such files.Type: ApplicationFiled: April 12, 2022Publication date: October 12, 2023Applicant: Pac-Dent, Inc.Inventors: Carlos Alberto Spironelli Ramos, Emmanuel Joao Nogueira Leal da Silva, Daniel Wang, Robert Yue
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Publication number: 20210236687Abstract: The present invention relates to a wound management composition consisting of full spectrum blend of active cannabinoids and at least one hemostatic agent including astringent-class hemostats, active-class hemostats, and active-mechanical-class hemostats. Further, the composition may also include at least chemical penetration enhancer that amplifies the absorption of cannabinoids, at least one local drug to prolong the pharmacologically active time of cannabinoids, at least one antibacterial agent, and at least one antifungal agent. Methods of delivery of the wound management composition and kits are also disclosed.Type: ApplicationFiled: January 31, 2020Publication date: August 5, 2021Applicant: Pac-Dent, Inc.Inventors: Daniel Wang, Xiao Yang, Heng Sun
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Publication number: 20210186653Abstract: Embodiments disclose a disposable protective assembly apparatus for a dental syringe body of a dental syringe. The apparatus is a combination of a disposable syringe tip and a disposable protective sleeve, the sleeve being pre-attached to the syringe tip, and the sleeve being in a pre-folded position to be quickly and easily slid over the dental syringe prior to a dental operation.Type: ApplicationFiled: March 10, 2021Publication date: June 24, 2021Applicant: Pac-Dent, Inc.Inventors: Daniel Wang, Taosheng Hu, Xiao Yang