K05.2 K05.3
Conditions
Interventions
Group 1: Separation of the tooth root under the dental crown and covering of the exposed pulp with MTA and composite filling material.
Group 2: Opening of the dental crown under local anesthesia throu
Sponsors
Poliklinik für Parodontologie, Zentrum für Zahn-, Mund- und Kieferheilkunde der Johann Wolfgang-Goethe Universität Frankfurt am Main
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: - written consent of the patient - furcation involvement with degree II and probing depths = 6 mm or with degree III in upper molars (without third molars) - the divergence and anatomical configuration of the root must allow the resective procedure - approximal bone loss of maximum one-sided 50% of the adjacent root length - sensitivity of the tooth with both the cold spray and via electrostimulation positive - the tooth should not have active carious lesions - the tooth should not be in the context of a prosthetic restoration (e.g., bridge, blocked crowns) - the tooth may have a maximum degree of mobility of grade I
Exclusion criteria
Exclusion criteria: - does not apply to any of the items mentioned under the "inclusion criteria" - pregnancy - participation of the patient in another study investigating a therapeutic intervention - there are systemic diseases that can be shown to cause wound healing disorders (e.g., diabetes mellitus [HbA1c = 7,0%], malignancies, HIV, radiation, immunosuppression) - patients with acute complaints in the area of the tooth in question - patients who smoke >10 cigarettes/day - periapical osteolysis recognizable on the root to be left - sufficient intraoperative hemostasis (during removal of the crown pulp or vital amputation) with 2.5% sodium hypochlorite was not achieved after a maximum of 5 minutes
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| - Sensitivity of the operated tooth after 1, 2, 4, 12, 24 weeks and after 1 and 5 years: for this purpose, the test tooth is brought into contact on both sides (buccal and palatal) with the aid of a plastic pellet sprayed with cold spray (Omnident-Dental Handelsgesellschaft mbH, Rodgau Nieder-Roden, Germany) and the patient is asked whether he or she perceives the cold on the tooth. In addition, it is tested by means of a commercial dental electrostimulation tester (Digitest ™ II Pulp Vitality Tester, Parkell Inc., Edgewood, NY, USA). For this purpose, the angled end piece for the posterior area of the tester with its metallic end is brought directly into tooth contact, after on the contralateral side a supplied lip hook was hooked to ensure a flow of current. The tester should be set to "medium" and should not exceed one cycle of increasing current (14 seconds). If the patient perceives a current flow in this cycle, the test is considered positive, otherwise negative. | — |
Secondary
| Measure | Time frame |
|---|---|
| - Change in Furcation Involvement - Elevation of furcation is measured with a probe scaled in 3mm increments (Naber's probe, PQ2N, Hu Friedy, Chicago, IL, USA), which is inserted horizontally across all furcation inputs (buccal, distopalatal, mesiopalatal), based on the depth of penetration relative to a tangent to the adjacent root surfaces, the following coding is made: 0 no probing in the horizontal direction possible I soundable up to 3mm in horizontal direction II >3mm soundable in horizontal direction, but not consistently III soundable throughout - Change in tooth mobility - The degree of looseness is surveyed by fixing the tooth between the handles of two arbitrary instruments and deflecting it in the buccal-palatal direction. Then the finding is subdivided according to the following coding: 0 normal mobility I horizontal mobility of 0.2 - 1.0mm II horizontal mobility of 1.0 - 2.0mm III horizontal mobility >2mm and/or in the axial direction - Change in periodontal probing depths (PPD) and attachment levels (CAL-V) - PPD and CAL-V are accurately measured to 0.5 mm with a simple periodontal probe (PCPUNC 15, Hu Friedy, Chicago, IL, USA) at 6 sites per tooth. PPD is defined as the distance from the pocket bottom to the lowest point of the marginal gingiva in the area of ??the measurement. The measurement of CAL-V is defined as the distance from the pocket bottom to the lowest point of the marginal cemento-enamel junction or restauration margin. - Alteration of radiological, periapical findings - It is assessed whether there is a radiological brightening in the periapical area. The latter would mean that the patient would be recommended to initiate a root canal treatment immediately and the tooth would be considered no longer sensitive. - Changes in bleeding on probing (BOP) - If bleeding occurs during one of the probing sessions, this site will be considered positive for BOP. - occurrence of subjective symptoms (e.g., pain, swelling, hypersens | — |
Countries
Germany
Contacts
Public ContactHari Petsos
Poliklinik für Parodontologie, Zentrum für Zahn-, Mund- und Kieferheilkunde der Johann Wolfgang-Goethe Universität Frankfurt am Main
Outcome results
None listed