Endodontic disease and periapical disease
Conditions
Interventions
Group of free hands for calcified root canals:Localization of calcified root canal by free hand
Group of 3D printed guides for calcified root canals:Localization of calcified root canal with 3D printing guide
Group of dynamic navigation for calcified root canals:Localization of calcified root canal with dynamic navigation
Group of free hands for endodontic microsurgery:Apical positioning and fenestration by free hand
Group of 3D printed guide plate for endodontic microsurgery:Apical positioning and fenestration by 3D printing guide plate
Group of dynamic navigation for endodontic microsurgery:Apical localization and fenestration assisted by dynamic navigation
Sponsors
Stomatological Hospital of Southern Medical University
Eligibility
Sex/Gender
All
Age
18 Years to 70 Years
Inclusion criteria
Inclusion criteria: 1. Inclusion criteria for calcified root canal studies: (1)Acute or chronic pulpitis or periapical periodontitis was confirmed by clinical examination and auxiliary examination; (2)Without endodontic treatment; (3)The X-ray film showed that there were diffuse shadows in the upper 2 / 3 of the root canal, and there were no shadows in the lower part of the curved root canal; (4)All volunteers participated in the study and signed informed consent. 2.Inclusion criteria of apical surgery research: (1)Refractory chronic periapical periodontitis with destruction of apical bone and long-term failure of fistula; (2) Root canal calcification and apical shadow coexist, and conventional root canal treatment cannot be carried out or the treatment fails; (3) The apical development is not complete, the apical foramen are open, the pulp revascularization or apical induction plasty cannot be performed, or the induction fails; (4) Apical pathological absorption, apical fracture, apical anatomical variation, and non-surgical treatment failure; (5)Iatrogenic factors: the instruments in the root canal are broken and cannot be taken out; Root canal overfilling was obvious and accompanied by uncomfortable symptoms; Root canal steps, unable to be dredged; Perforation of lateral wall of root canal with infection; (6)The core post crown cannot be taken out or the core post has a great risk of root fracture; (7)The true cyst does not heal after non-surgical treatment; (8)The diameter of the lesion area around the root tip is less than 6mm, and the labial / buccal bone cortex is intact. It is difficult to locate the root tip and lesion area of the affected tooth; (9)All volunteers participated in the study and signed informed consent
Exclusion criteria
Exclusion criteria: 1. Exclusion criteria for calcified root canal studies: (1)Teeth with no retention value; (2)Those who cannot cooperate to complete root canal treatment; (3)Non primary root canal treatment with fillings in the root canal; (4)The X-ray film showed that the diffuse obstruction shadow existed in the lower segment of the root canal. 2. Exclusion criteria of apical surgery study: (1)Conventional root canal (RE) treatment can cure the periapical lesions; (2)Non functional or irreparable teeth, teeth with insufficient periodontal tissue support or periodontal pulp joint lesions; (3)Unable to cooperate; Patients with serious systemic diseases, such as hypertension (> 100 / 180mmhg), diabetes (fasting blood glucose > 8.88mol/l), blood diseases, malignant tumors, serious metabolic diseases, history of radiotherapy and chemotherapy, and AIDS; Patients taking bisphosphonates.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Operation time of calcified root canal localization;Success rate of calcified root canal localization;Dentin removal of localized calcified root canal;The three-dimensional angle deviation between the planned path and the center long axis of the actual path, the deviation of the two-dimensional horizontal distance of the drill end center point, the deviation of the two-dimensional vertical distance of the drill end center point, and the deviation of the t;Time of bone removal and root end resection in patients undergoing endodontic microsurgery;Record the minimally invasive degree of osteotomy (the maximum diameter of fenestration) and the accuracy of apical positioning (the linear distance from the center point of the range of labial / buccal osteotomy to the apical);The three-dimensional distance between the planned path and the actual path at the center of the cortical bone approach in micro apical surgery; | — |
Countries
China
Contacts
Public ContactQiu Xiaoling
Stomatological Hospital of Southern Medical University
Outcome results
None listed