Vital Pulp Therapy

Inside every tooth is the pulp: the nerve, blood vessels and connective tissue that keep the tooth alive. Deep decay, a crack or a traumatic injury can inflame or expose it. For decades the standard answer was a root canal, which removes the pulp entirely. Research over the last fifteen years, and the arrival of bioceramic materials such as Biodentine and MTA, changed that picture. When inflammation is limited and the pulp can still heal, a smaller procedure often does the job.

Vital pulp therapy includes three related treatments. Indirect pulp capping leaves a thin layer of softened dentin over the pulp and seals it so the tooth can repair itself from the inside. Direct pulp capping places a bioceramic material directly on a small, clean pulp exposure. Pulpotomy removes the inflamed pulp from the crown of the tooth while preserving the healthy pulp in the roots. The right option depends on how far the inflammation has spread, which is why diagnosis under magnification matters.

Vital pulp therapy is considered when the pulp is inflamed but still healthy enough to recover. Signs that a tooth may qualify include:

• Sensitivity to cold that fades within a few seconds once the stimulus is removed
• A deep cavity or fracture that reaches close to or into the pulp, found on an X-ray or during a filling
• Mild, short-lived discomfort rather than spontaneous or throbbing pain
• A young permanent tooth whose roots are still forming
• No swelling, no abscess and no dark area at the root tip on imaging

Lingering pain after hot or cold, pain that wakes you at night, swelling, or a tooth that no longer responds to cold testing usually means the pulp cannot be saved and a root canal is the better treatment.

The materials used in vital pulp therapy are what make it reliable. Biodentine is a calcium silicate cement that sets hard, bonds to dentin, resists bacteria and stimulates pulp cells to form a bridge of new dentin over the treated area. Mineral trioxide aggregate (MTA) and other bioceramics work on the same principle. These materials replaced the older calcium hydroxide liners that often failed within a few years.

Technique matters as much as material. The exposed pulp has to be clean and free of bleeding before it is sealed, the field has to stay dry and isolated, and the final restoration must seal the tooth completely. Working under the surgical microscope lets Dr. Monempour judge the condition of the pulp tissue directly, remove exactly what is inflamed, and place the material with precision. Cone beam CT imaging confirms there is no infection at the root tip beforehand.

Timing is the deciding factor. The window for vital pulp therapy is open while the pulp is inflamed but still healthy, and it closes once infection sets in. If your dentist has found a deep cavity near the nerve, if a filling procedure exposed the pulp, or if you have a young permanent tooth with an injury or deep decay, ask about vital pulp therapy before a root canal is scheduled. Call 310-278-5993 for an evaluation; we can usually see you within a day or two, and the same day for pain.