AH Plus® endodontic sealer is a class IIa medical device used for permanent obturation of root canals of teeth of the secondary dentition in combination with root canal points, for subjects in need of endodontic treatment to restore a tooth.

AH Plus Jet® Root Canal Sealing Material is a predicate to AH Plus Jet® Endodontic Sealer.

Endodontic treatment success according to strict criteria after 6 months, 1 and 2 years.

The endodontic treatment is considered a failure according to the strict criteria under any of the following criteria:

• Need for intervention due to pain to percussion, palpation, or bite tests compared to the nearest contralateral tooth.
• Sign of a swelling.
• Sign of a sinus tract.
• Periapical index (PAI) score >2.
• Radiolucent pathology visible on radiograph.

Short-term self-reported post-operative pain level of study tooth using Numeric Rating Scale (NRS) 0-10, where 0 is no pain and 10 is worst possible pain.

Patient completed questionnaire consisting of 27 questions. The patient will have an option to select a number between 0-6 in response to each question where a 0 indicates you never do that when you experience pain, a 3 indicates you sometimes do that when you experience pain, and a 6 indicates you always do it when you are experiencing pain. The scores will be categorized into mean values resulting in "active coping" or "passive coping" as listed below and will be correlated to patient-reported short-term post-operative pain intensity levels.

Active Coping is the mean of the following categories; Diverting Attention (questions 2, 15, 16, 25 and 26), Reinterpreting Pain Sensations (questions 1, 9, 18 and 27), Coping Statements (questions 4, 5, 11 and 20), and Ignoring Pain Sensations (questions 10, 12, 13, 19 and 22).

Patient completed questionnaire consisting of 27 questions. The patient will have an option to select a number between 0-6 in response to each question where a 0 indicates you never do that when you experience pain, a 3 indicates you sometimes do that when you experience pain, and a 6 indicates you always do it when you are experiencing pain. The scores will be categorized into mean values resulting in "active coping" or "passive coping" as listed below and will be correlated to patient-reported short-term post-operative pain intensity levels.

Passive Coping is the mean of the following categories; Praying & Hoping (questions 8, 17 and 23) and Catastrophizing (questions 3, 6, 7, 14, 21 and 24).

Adverse Events, Adverse Device Effects, and Device Deficiencies spontaneously reported, and collection at each clinical investigation visit.