A biopsy is a procedure where a small sample of tissue is removed from the body for laboratory examination. In dentistry, biopsy is commonly used to evaluate unusual sores, lumps, patches, or growths in the mouth. The sample is examined by a pathology laboratory to help identify what the tissue change represents. Results can support diagnosis and guide the next steps in care planning.

Ludwig’s angina is a rapidly spreading infection of the floor of the mouth and upper neck. It most often starts from a dental source, especially a lower molar infection. Clinicians use the term to describe a specific, high-risk pattern of deep neck infection. It is commonly discussed in emergency medicine, dentistry, oral surgery, and ENT (ear, nose, and throat) care.

A fascial space infection is an infection that spreads into the natural tissue “planes” (spaces) of the head and neck. These spaces lie between layers of fascia, which is thin connective tissue that surrounds muscles and other structures. The term is commonly used in dentistry, oral surgery, and emergency care to describe spreading dental-related infections. It helps clinicians communicate where the swelling is and how serious the spread may be.

I&D is a shorthand term some dental teams use when discussing **injectable or flowable resin-based composite placed in a direct (chairside) procedure**. It describes a way of placing tooth-colored filling material by **flowing or “injecting” it into a prepared area or a matrix**. I&D is commonly discussed in restorative dentistry for **small-to-moderate repairs, sealing, and shape corrections**. Meaning and usage can vary by clinician and case, so the abbreviation may be used differently in different settings.

incision and drainage is a minor surgical procedure used to release trapped fluid, most often pus from an infection. It is commonly used to manage localized dental and oral infections such as abscesses. The goal is to reduce pressure and help the area heal while definitive dental treatment addresses the cause. In dentistry, it may be performed in the clinic when a collection is accessible and appropriately localized.

abscess drainage is a clinical procedure used to release trapped pus from an abscess. It is commonly used in dentistry when an infection creates a localized pocket of fluid in the gums, around a tooth, or in nearby tissues. The goal is to reduce pressure and help control the spread of infection. It may be performed in dental offices, urgent care settings, or hospital-based oral surgery services depending on severity.

postoperative infection is an infection that develops after a dental or surgical procedure. It usually involves bacteria entering or overgrowing in tissues that are healing from treatment. The term is commonly used after extractions, implant surgery, periodontal procedures, and endodontic (root canal) care. Clinically, it helps clinicians describe, document, and manage complications that go beyond expected healing.

antibiotic prophylaxis is the preventive use of an antibiotic to lower the chance of a specific infection. In dentistry, it is most often considered before certain procedures that can introduce bacteria into the bloodstream. It is used selectively for people with particular medical conditions where the consequences of infection may be serious. The decision typically depends on the patient’s health history and the planned dental treatment.

infection control is a set of steps used to reduce the spread of germs (microorganisms) in healthcare settings. In dentistry, it includes cleaning, disinfection, sterilization, and protective barriers used during patient care. It is used in dental offices, hospitals, surgical centers, and laboratories where body fluids and contaminated surfaces may be present. The goal is to lower the chance of cross-contamination between patients, clinicians, and the clinical environment.

postoperative analgesia means controlling pain after a procedure once the local anesthetic wears off. It includes medication and non-medication strategies to reduce discomfort and improve function. In dentistry, it is commonly discussed after extractions, root canal treatment, periodontal surgery, and implant procedures. It is also relevant after routine restorative work when patients experience short-term soreness.