Reversible Pulpitis Clinical Trial
Official title:
Success of Direct Pulp Capping With Mineral Trioxide Aggregate and Calcium Hydroxide In Cariously Exposed Teeth: A Randomized Clinical Study.
Aim of the study was to evaluate and compare clinical and radiographic success with MTA and
calcium hydroxide as direct pulp capping materials in cariously exposed mandibular molars.
Study was conducted in Post Graduate Institute of Dental Sciences, Rohtak in department of
Conservative Dentistry & Endodontics. Mature permanent mandibular molars with reversible
pulpitis exhibiting occlusal pulp exposure from primary dental caries were included in the
study. After excavation of caries and obtaining pulpal hemostasis, patients were randomly
allocated into two groups- MTA and Calcium Hydroxide. Pulp was capped with respective
allocated material and then tooth in both groups were restored according to standard
protocol.
AIM AND OBJECTIVES The present study aims to
1. Evaluate the success of direct pulp capping in mandibular molar teeth.
2. Evaluate and compare the clinical and radiographic success with MTA and calcium
hydroxide as direct pulp capping materials.
3. To assess the pain intensity before and after the direct pulp capping with visual analog
scale (VAS).
MATERIALS AND METHODS Study subjects were recruited from the patients visiting the Department
of conservative dentistry and endodontics, PGIDS, Rohtak.
METHODOLOGY Prior to treatment, a thorough clinical and radiological examination was carried
out.
A thorough history will be taken from each patient. Prior informed consent was obtained
either from the patient or guardians after explaining the procedure, risks and benefits.
Clinical procedure:
Mature mandibular permanent molars exhibiting deep caries approaching pulp were chosen for
the study.
The teeth were evaluated by periapical radiographs, periodontal probing, percussion test, and
vitality assessment with thermal test and electric pulp test; the teeth determined to have
reversible pulpitis were included.
All periapical radiographs were exposed by using constant kVP, mA, and exposure time (70 KVP,
8 mA, and 0.8 sec.) with a Rinn paralleling device and processed manually.
After administration of local anesthesia, rubber dam isolation of the involved tooth was
done.
The tooth was disinfected by scrubbing with 2% chlorhexidine and 75% isopropyl alcohol.
Initially caries was removed with round bur under sterile water spray. Then, the remaining
caries was removed carefully with a spoon excavator. After complete caries excavation,
disinfection of exposed pulp with 2.5% sodium hypochlorite irrigation and a soaked cotton
pellet was done.
Then sodium hypochlorite dressing was placed for 10 minutes to achieve adequate pulpal
hemostasis.
Patients were randomly allocated into two groups (Group I - MTA and Group II -Calcium
hydroxide) using a computer program This study was a double blinded trial i.e. both the
patient and the investigator were not aware of the group to which the participant belongs.
GROUP I- CALCIUM HYDROXIDE GROUP Calcium hydroxide powder was mixed according to
manufacturer's instructions and applied directly onto the exposed pulps.
The cavities were then restored with resin modified GIC liner followed by composite
restoration.
GROUP II - MTA GROUP MTA was mixed according to manufacturer's instructions i.e. 1:3 water/
powder ratio and applied to exposure site with a sterile carrier.
Then cotton pellets soaked in normal saline was placed over MTA and cavity was sealed
temporarily with intermediate restoration material.
After 24 hours, the patient was recalled and the setting of MTA was confirmed and the cavity
was restored with resin modified GIC liner followed by composite restoration.
FOLLOW UP The patients were recalled periodically at 1 week, 3 months, 6 months and 12 months
after the direct pulp capping procedure for clinical (post operative sensitivity, pain,
tenderness, vitality) and radiographic (widening of periodontal ligament space and periapical
radiolucency) evaluation.
CRITERIA FOR SUCCESSFUL OUTCOME A positive vitality test. No pain on percussion. No widening
of periodontal ligament on periapical radiograph. No clinical or radiographic signs and/or
symptoms of irreversible pulpitis and pulp necrosis.
CRITERIA FOR FAILURE No response to pulp vitality test. Teeth exhibiting clinical or
radiographic signs and/or symptoms of irreversible pulpitis and pulp necrosis.
Postoperative pain assessment:
This was done using Horizontal VAS scale preoperatively, 6, 12, 18 hours, 1, 2, 3, 4, 5, 6,
and 7 days after the procedure.
The pain VAS was completed by the patients themselves. The patients were asked to place a
line perpendicular to the VAS line at the point that represents their pain intensity.
Patients were also asked to take analgesic (ibuprofen 400 mg/6-8h) according to the intensity
of pain experienced by them and note down the details of analgesic intake on the proforma
regarding the number of doses required and timing of the dose.
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