Comparison of clinical parameters and environmental noise levels between regular surgery and piezosurgery for extraction of impacted third molars.

The purpose of this review was to determine if postoperative sequelae (facial swelling, trismus, pain) and neurological complications are reduced when mandibular third molars are surgically extracted using a piezoelectric device for osteotomy compared with conventional rotary burs, and to determine if there is a difference in operating time between the two techniques. Clinical trials were identified through a search (April 2015) on the PubMed, EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL) and Google Scholar databases. Studies were assessed by study type, characteristics of participants, sample size, surgical technique, cointerventions, outcomes, risk of bias, and findings. We calculated a Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) rating of confidence in the effect estimates. We identified 2515 citations and found 15 eligible clinical trials. Patients who had osteotomies with the piezoelectric device had less facial swelling (standard mean difference -1.15; 95% CI -2.02 to -0.27; p < 0.0001), trismus (greater maximum mouth opening, standard mean difference 0.78; 95% CI 0.56 to 1.00; p = 0.33) and pain (standard mean difference -0.84; 95% CI -1.55 to -0.13; p < 0.0001) at day 1, less facial swelling at day 7 (standard mean difference -0.98; 95% CI -1.52 to -0.44; p = 0.05), and a reduced risk of neurological complications (odds ratio (OR) 0.28; 95% CI 0.09 to 0.89; p = 0.79). Trismus at day 7 and pain at day 5 did not differ significantly between the two methods. Operating time was longer with the piezoelectric device (standard mean difference 0.83; 95% CI 0.57 to 1.09; p = 0.001). The confidence in the effect estimates was low or very low across all outcomes. The findings raise the possibility of an improved clinical healing response to osteotomy with the piezoelectric device compared with one done with conventional rotary burs for surgical extractions of mandibular third molars.

Piezoelectric compared with conventional rotary osteotomy for the prevention of postoperative sequelae and complications after surgical extraction of mandibular third molars: a systematic review and meta-analysis.

To compare the effectiveness of three methods: high-speed contra-angle handpiece (HSCAH), piezosurgery, and combined in the extraction of different locations and types of embedded supernumerary teeth.Sixty cases with different locations and different types of embedded supernumerary teeth were randomly divided into three groups for extraction by HSCAH, piezosurgery, and the combination of both, and the intraoperative and postoperative conditions of the three groups were compared and analyzed.In the extraction of embedded supernumerary teeth in the inverted, horizontal, and root tip positions, the piezosurgery group required significantly longer operative time and reduced intraoperative bleeding compared with the HSCAH and the piezosurgery combined with the HSCAH; it could effectively relieve postoperative pain and facial swelling. In the extraction of oblique, orthodontic, middle, and crown segments of embedded supernumerary teeth, the use of a piezosurgery combined with an HSCAH can effectively reduce the operative time, while the factors of bleeding, postoperative pain, and facial swelling not statistically significant when compared with a piezosurgery. Compared with the HSCAH and combined piezosurgery, piezosurgery can significantly reduce the fear of patients.Piezosurgery is effective in extracting embedded supernumerary teeth in inverted, horizontal, and apical positions, effectively reducing intraoperative and postoperative trauma and shortening the time required for healing. The piezosurgery combined with an HSCAH can effectively reduce intraoperative and postoperative trauma when extracting embedded supernumerary teeth in oblique, orthodontic, middle, and crown positions. piezosurgery is a technique suitable for the treatment of patients with fear. 

https://bmcoralhealth.biomedcentral.com/counter/pdf/10.1186/s12903-023-02829-y

A clinical study of the piezosurgery, high-speed contra-angle handpiece, and the combined application of both for extraction of embedded supernumerary teeth

The invention discloses a guide plate for implantation of orthodontic micro-screw and a manufacturing method thereof. The method comprises: acquiring dental data from a CBCT image of a patient, rebuilding a three-dimensional image of jaw and teeth at an area to be subjected to implantation; acquiring a three-dimensional image of a to-be used micro-screw from a preset micro-screw three-dimensional image database, and regulating the three-dimensional image of the to-be used micro-screw at a preset position; establishing a first cylinder, enabling the direction of the cylinder to be same to the direction of the to-be used micro-screw and enabling the diameter of the cylinder to be larger than the diameter of a cuff part at the end of a screwdriver head; establishing a guiding part, namely forming a second cylinder at the periphery of the first cylinder along the axial direction, enabling the diameter of the second cylinder to be larger than the diameter of the first cylinder and enabling the two cylinders to be coaxial and same in height, and arranging a buffer distance between one end, facing to the phatnoma mucous membrane, of the cylinders and phatnoma mucous membrane; establishing a position-fixing part, namely painting the occlusion part and the occlusion surface at the appearance high point close to a tooth axial surface of the implantation part with an extended-crown preset-thickness coating; and establishing a connection part to connect the guiding part and the position-fixing part, so as to obtain a three-dimensional image of the guide plate, and printing.

Guide plate for implantation of orthodontic micro-screw and manufacturing method thereof

The invention relates to a method for implanting and locating a micro planting nail for orthodontics. The method comprises the steps that an oral cavity to be implanted with the micro planting nail is subjected to CBCT (Cone Beam Computed Tomography); a three-dimensional reconstruction for an oral cavity structure is performed; a three-dimensional entity image model is formed; a micro planting nail model is imported into a computer; a preset planting position for the micro planting nail is determined; an occlusal plane plate is put in a mouth of a patient; a horizontal movable unit is arranged on the occlusal plane plate; a lifting and rotation unit connected with a planting gun guide tube is arranged on the movable unit; a vertical distance between the planting gun guide tube and the occlusal plane plate and a planting direction of the micro planting nail are determined; and a planting gun is finally connected with the planting gun guide tube for planting operation. The method has the benefits that the implantation precision of the micro planting nail can be improved effectively; an implantation falling-off rate of the micro planting nail is reduced; a good correction effect is achieved; the pain and the hospitalization cost of a patient can be relieved and reduced; and the clinical working time of a doctor is saved.

Method and device for implanting and locating micro planting nail for orthodontics

The utility model discloses a special maxillary sinus bottom lifting mechanism for a tooth-planting tooth, which comprises a cylinder provided with an arc-shaped concave top-pushing end, and is characterized in that the cylinder above the arc-shaped concave top-pushing end is provided with a thread section, and the other end of the cylinder is provided with a wrench clamping end; the thread section of the cylinder is provided with a base plate provided with a screwed hole; and the base plate is screwed on the cylinder above the arc-shaped concave top-pushing end through the coordination between the screwed hole of the base plate and the thread section of the cylinder. The special maxillary sinus bottom lifting mechanism is scientific in design, reasonable and simple in structure and convenient in operation, and adopts the arc-shaped concave top-pushing end to realize lifting of the maxillary sinus bottom in the manner of orderly exertion on the bone of the maxillary sinus bottom, thus not only being capable of mastering the lifting height of the maxillary sinus bottom, but also eliminating the hidden trouble of maxillary sinus mucosa damage caused by over force application, and enhancing safety; and the mild operation mode eliminates the fear of a patient during the operation.

Special maxillary sinus bottom lifting mechanism for tooth-planting tooth

OBJECTIVE To study the effect of piezosurgery in the extraction of mandibular impacted third molars. METHODS 228 mandibular impacted third molars with relative difficulty for extraction according to the scheme of degree of difficulty for extraction were included in the study, and were divided into two groups (114 teeth each group): Test group (treated by piezosurgery), control group (treated by traditional chisel osteotomy). The surgery time and pain, restriction of mouth opening and facial swelling after surgery, were evaluated in both groups. RESULTS The average surgery time was (16 +/- 5.2) min in test group and (30 +/- 8.7) min in control group. The surgery time, pain, facial swelling rate, and restriction of mouth opening were lower than control group (P<0.05). CONCLUSION Compared with traditional chisel osteotomy, the average surgery time with piezosurgery was significantly shorter and the complications are obviously reduced.

Comparison of piezosurgery and chisel osteotomy in the extraction of mandibular impacted third molars

The utility model relates to a bone taking drill for the tooth implantation surgery and a bone chip collector. The bone taking drill comprises a supporting member with a buckle part at one end and a tubular bone cutting drill with a plurality of cutting edges at the end part, wherein guiding-in ports by which cutting objects can be guided into an inner cavity of the tubular bone cutting drill are arranged among the cutting edges. The bone taking drill is characterized in that a bone chip collector composed of a tubular body and a one-way valve fixedly mounted at one end of the tubular body is arranged in the tubular bone cutting drill. When the bone taking drill for the tooth implantation surgery and the bone chip collector are in use, after the cutting objects are guided into the inside of the tubular bone cutting drill by the cutting edges of the tubular bone cutting drill through the guiding-in ports, the cutting objects entering the tubular bone cutting drill can act on the one-way valve and impel the one-way valve to be open for extruding the cutting objects into the bone chip collector. The bone taking drill integrates the cutting and the collecting; and the bone chip collector can be taken out of the tubular bone cutting drill through taking down the tubular bone cutting drill from the supporting member so as to greatly facilitate the operation. The bone taking drill has ideal use effect and also has high application value with regard to clinical operation.

Bone taking drill for tooth implantation surgery and bone chip collector

A mucosa spreader for a tooth implanting surgery is characterized by comprising an alveolar bone clamp and a window, the alveolar bone clamp is used for clamping a bone surface after gingival separation, mucosa supporting stoppers for stopping an outer lip lingual mucosa after separation are respectively arranged on two lateral clamping walls of a non-nib end of the alveolar bone clamp, and the window for surgical operations is arranged on the alveolar bone clamp between the two mucosa supporting stoppers. The special mucosa spreader for a tooth implanting surgery is simple in structure, simple and convenient in operation and ideal in spreading effect for mucosa on two sides of a tooth implanting area, and facilitates sufficient exposure of the bone surface in the tooth implanting area, thereby facilitating operations of the tooth implanting surgery and having great application value for clinic operations.

Mucosa spreader for tooth implanting surgery

The utility model discloses a positioning and guiding component for an implant anchorage. The positioning and guiding component comprises a dentition fixing ring, an anchorage guide tube and a connecting rod, wherein the dentition fixing ring is sleeved on a dentition; an included angle is formed between a tubular shaft of the anchorage guide tube and the external surface of the dentition in vertical and horizontal directions; and a notch for enabling the anchorage to laterally enter the tube is formed in one side of the anchorage guide tube. Based on a three-dimensional digital image technology and by adopting an implant anchorage implantation guiding component adaptive to the dentition of a patient, the positioning and guiding component greatly improves the precision of implanting the implant anchorage into a correct position, and can effectively keep away roots of adjacent teeth, inferior alveolar nerves, nervus mentalis, maxillary sinus, permanent teeth germs and other important anatomical structures, so that the implantation safety of the implant anchorage is greatly improved. Furthermore, by taking account of both biomechanics and functional recovery, the positioning and guiding component is beneficial to the quick correction and treatment of abnormal teeth of a patient and improves the correction and treatment efficiency. The positioning and guiding component has the advantages of simple structure, simplicity in manufacturing, safety and reliability, accurate retention, high precision and good practicability.

Positioning and guiding component for implant anchorage

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