# US 12,004,917 B1 · Mandibular quadridam

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- Number: US 12,004,917 B1
- Document ID: US12004917B1
- Status: Granted
- Kind: B1
- Application number: 18/141,998
- Filed: 2023-05-01
- Granted: 2024-06-11
- Earliest claimed: 2023-05-01
- Assignees: King Faisal University
- Applicants: King Faisal University
- Inventors: Anil Bangalore Shivappa; Guna Shekar Madiraju
- Web page: https://patentgrep.com/patent/US12004917B1

## CPC

- A61C 5/82: Dams; Holders or clamps therefor
- A61C 5/90: Oral protectors for use during treatment, e.g. lip or mouth protectors (A61C5/82 takes precedence)
- A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00)

## Abstract

A system and method for sealing and isolating an area of an intra-oral cavity using a rubber dental dam is provided. The rubber dental dam is sized to isolate and seal a partial area of the intraoral cavity, such as a lower half or an upper rear quadrant of the intraoral cavity. The rubber dental dam includes a saliva ejector port for allowing suction to remove fluids from the area.

## Claims

### Claim 1

A mandibular quadridam configured for placement of within a patient's intraoral cavity prior to commencement of a dental surgical procedure on said patient, said mandibular quadridam comprising:
a flexible dental dam configured for isolating a lower half of the patient's oral cavity and configured to extend over an anterior portion and a posterior portion of the patient's mandible, said flexible dental dam further configured to extend over a portion of the patient's maxillary;
a border frame enclosed within an outer edge of said flexible dental dam defining a coverage area of the mandibular quadridam;
a vertically raised portion extending from said flexible dental dam and configured to traverse said patient's oral cavity between a lower portion of the patient's oral cavity and an upper portion of the patient's oral cavity, said vertically raised portion for providing separation from an untreated area of said patient's intraoral cavity;
a port for saliva ejection located in the posterior portion of the flexible dental dam; and
a maxillary extension including a contoured rubber portion extending from the posterior mandible portion of the flexible dental dam to the maxillary portion that helps position said flexible dental dam in place,
wherein said border frame enclosed within said dental dam extends within said vertically raised portion providing vertical support for said vertically raised.

### Claim 2 (depends on 1)

The mandibular quadridam as recited in claim 1, wherein said mandibular quadridam further includes a pair of openings in the flexible dental dam where said pair of openings provide accessibility to a collection of teeth to be treated by the dental surgical procedure by having said collection of teeth protrude through said pair of openings.

### Claim 3 (depends on 2)

The mandibular quadridam as recited in claim 2, wherein the border frame enclosed within said flexible dental dam defines a coverage area of the mandibular quadridam with a seal to isolate a working area of said flexible dental dam from saliva from the patient's intra-oral cavity.

### Claim 4 (depends on 3)

The mandibular quadridam as recited in claim 3, including a thickened muco-gingival fold with an adaptive property for sealing.

### Claim 5 (depends on 4)

The mandibular quadridam as recited in claim 4, wherein the flexible dental dam is made from rubber, plastic, or silicone.

### Claim 6

A mandibular quadridam configured for placement within a patient's intraoral cavity prior to a commencement of a dental surgical procedure on said patient, said mandibular quadridam comprising:
a flexible dental dam for isolating a lower half of the patient's oral cavity and configured to extend over an anterior portion and a posterior portion of a patient's mandible, said flexible dental dam further configured to extend over a portion of the patient's maxillary;
a border frame enclosed within an outer edge of said dental dam defining a coverage area of the mandibular quadridam;
a vertically raised portion extending from said flexible dental dam and configured to traverse said patient's oral cavity between a lower portion of the patient's oral cavity and an upper portion of the patient's oral cavity, said vertically raised portion for providing separation from an untreated area of said patient's intraoral cavity;
a port for saliva ejection located in the posterior portion of the flexible dental dam; and
a maxillary extension including a contoured rubber portion extending from the posterior mandible portion of the flexible dental dam to the maxillary portion that helps position said flexible dental dam in place,
wherein said coverage area is adapted to cover a rear part of an upper quadrant along with an entire lower quadrant on a same side of said intraoral cavity, and
wherein said border frame enclosed within said dental dam extends within said vertically raised portion providing vertical support for said vertically raised portion.