Possibility of next-generation conservative treatment by Powder Jet Deposition (PJD) technology for caries, hypersensitivity, and discolored teeth
Conservative Dentistry with Hydroxyapatite
Miyazaki Chie
Sangi Dental Clinic
2745-1 Fudoinno Kasukabe-shi Saitama
+81-48-755-1118
clinic@sangi-j.co.jp
Miyazaki Chie
Sangi Dental Clinic
2745-1 Fudoinno Kasukabe-shi Saitama
+81-48-755-1118
clinic@sangi-j.co.jp
Recruiting
April. 08, 2022
Mar. 09, 2023
60
Interventional
single arm study
open(masking not used)
uncontrolled control
single assignment
treatment purpose
1. Patients who can go to the hospital during the study period
2. Patients at least 20 years of age at enrolment date
3. Patients providing the written informed consent
4. In addition to the above, the selection criteria for each disease and the tooth to be examined are defined below
"Caries"
Patients who can be diagnosed as having caries localized in the enamel or dentin by inspection and X-ray examination, and which can be preserved and repaired by resin filling. The target is premolar or molar, and class1 cavity.
"Hypersensitivity"
Patients diagnosed with dentin hypersensitivity which can be confirmed by induced pain
"Discolored teeth"
Patients with a desire to whiten teeth
Patients with a desire to give their teeth a gloss
Patients providing informed consent for color change to sample color after treatment, and that the color tone of the contact point, lower solid void, and cervical region may not change. Up to three consecutive teeth shall be treated
1. Patients with oral mucosal disease
2. Patients with uncontrolled underlying disease
3. Patients who are lactating, pregnant, or intending to become pregnant
4. Patients who have pain caused by other disease and are taking drugs with analgesic effect
5. Patients who are otherwise considered ineligible for enrolling in the study by the principal investigator
20age old over
No limit
Both
1. Caries 2. Hypersensitivity 3. Discolored teeth
A film composed of hydroxyapatite, which is the main component of teeth, is formed on teeth, and it blocks the stimulation to the pulp, occludes the dentinal tubulus and improves color tone of teeth.
Caries Hypersensitivity Discolored teeth
hydroxyapatite
"Caries"
(1) Evaluate the restoration for compatibility or detachment.
(2) Evaluate spontaneous pain in daily life and induced pain.
"Hypersensitivity"
(1) Evaluate the reduction of spontaneous pain in daily life and induced pain.
(2) Evaluate the damage in the gingiva.
"Discolored teeth"
(1) Evaluate the change in color tone by sensory evaluation.
(2) Evaluate the change in color tone with a spectrophotometer.
(3) Evaluate the satisfaction level of the subject.
(4) Evaluate the damage in the gingiva.
"Caries"
Evaluate the efficiency of hydroxyapatite layer formation in the tooth cavity after caries removal and the feeling of usability by the operator.
"Hypersensitivity"
Evaluate the efficiency hydroxyapatite layer formation on the tooth surface with exposed dentin or wedge-shaped defects and the feeling of usability by the operator.
"Discolored teeth"
Evaluate the efficiency of forming a hydroxyapatite layer on the teeth, including at the cervical region, the lower solid void, and the contact point with the adjacent tooth and usability by the operator.
