39 results about "Full Crown" patented technology

The invention discloses a digitalized generation method for outside surface of a full crown prosthesis. The method comprises the following steps: based on a standard crown with the same name of a current repair model, importing a standard crown model with the same name from a database; preprocessing the standard crown model; editing and processing the preprocessed standard crown model; dynamicallycutting the edited and processed standard crown model; generating a transition mesh surface according to the cut standard crown model; conducting specific deformation processing on the outer surfaceaccording to the transition mesh surface to obtain the outer surface of the full crown prosthesis. The method ensures that there is no interference between a standard crown boundary and an inner surface boundary, creates a good boundary position relationship for transition between the standard crown and the inner surface, significantly improves the generation quality of a transition surface, and ensures that the full crown prosthesis obtained through the design not only meets a specific supporting strength but also maintains the vast majority of the standard dentofacial and maxillofacial morphologies. The method can be widely used in the field of denture restoration.

The invention discloses a method for full-crown transplanting of a big liriodendron chinense tree at high temperature in summer and belongs to the technical field of big tree transplanting. The method includes following steps: 1), cutting off roots and rooting; 2), excavating and loading; 3), transporting and unloading; 4), trimming and performing antiseptic treatment; 5), improving soil; 6), digging a hole for planting; 7), planting; 8), supporting and maintaining; 9), preventing disease and pest. Through scientific transplanting and maintaining management, survival rate of the big liriodendron chinense tree after being transplanted is high, the big tree has many roots and exuberant branches and leaves, and surviving and healthy and strong growing are realized.

The invention provides an almond ground seedling full-crown transplanting method. The method comprises the steps of soil ball digging, primary root breaking, root sterilizing and disinfecting, rooting treatment, soil ball binding, surrounding with a root controlling device, matrix soil back filling, secondary root breaking and third-time root breaking; by means of a final transplanting comprehensive treatment mode, the original tree shape and tree crown of an almond ground seedling are kept, the growth period for restoring the tree shape is greatly shortened, and the transplanting survival rate is increased. According to the technical scheme, high-quality nursery stock is provided for garden greening, and a very good landscape effect is formed within a short time.

The invention discloses a method for off-season full crown transplanting of trees. The method comprises the following steps of spraying tress crowns with a mixed aqueous solution containing ethephon and abscisic acid for performing pesticide defoliation treatment; then lifting trees after tree leaves start falling off; spraying an aqueous solution of naphthylacetic acid on soil balls during transplanting, and wrapping trunks and pruning branches; finally, transplanting and then immediately and thoroughly watering for the first time, wherein water for watering contains the naphthylacetic acid and potassium permanganate, watering the transplanted trees which once become very dry and thoroughly watering the transplanted trees; after transplanting, spraying an aqueous solution of amino acid to the trunks every day to keep moisture and promote new leaves to sprout. According to the method disclosed by the invention, by adopting defoliation treatment before the tress are lifted, fixed planting of the trees and maintenance management after transplanting, the tree crowns can be kept complete on the premise of guaranteeing the survival rate, and a good greening landscape effect is realized; meanwhile, the method is simple in operation, and pesticides are low in price and easily purchased.

The invention discloses a method of applying an anti-transpiration agent in big tree full-crown transplantation. The method includes the following steps of a preprocessing, wherein a big tree is fully irrigated three days before digging and injected with a nutrient solution, and a crown is appropriately trimmed and coated with preservative and wound curing ointment; b anti-transpiration agent spraying, wherein the anti-transpiration agent is uniformly sprayed to the crown of the big tree particularly north faces of leaves until the anti-transpiration agent begins to drip from the leaves; c digging, wherein root cutting faces with the diameter larger than 1 cm are treated with preservative, fungicide and rooting hormone; d planting, wherein 3-4 ventilating pipes are put in each hole, and after planting, it is ensured that the ventilating pipes are higher than the ground face by 5 cm; e final-period management, wherein shielding and water spray need to be conducted to reduce temperature in high-temperature seasons to prevent the tree being damaged by high temperature. By means of the mode, the step of spraying the anti-transpiration agent to the crown serves as the core and supplemented by the disease branch pre-pruning technology, the soil ventilating technology, the anticorrosion root inducing technology, shielding and spray moisture preserving method, and the survival rate of the big tree after full-crown transplantation reaches 99% or more.

The invention discloses a magnolia tree full-crown reserved transplanting method including the steps of performing root excision to the magnolia tree needed to be transplanted in advance, with the level harsh-free cut; performing processes of root cut smearing, ball and burlap planting and disinfecting in time without cutting off the crown, while preventing the ball from being loose during the process of ball and burlap planting and keeping the root wet by lapping moisturized cotton; at the initial stage of root excision, watering and moisturizing, and specifically spraying water to the trunk and the crown in the morning and the evening every day so as to cool the tree in hot weather; since fibrous roots grow, keeping watering to moisturize; when needing to transplant the tree, hoisting to transport the tree to the destination to plant and then maintain. According to the full-crown transplanting technology rather than the conventional crown and root excision transplanting manner, the social requirement for landscape construction is met while the transplanting survival rate is increased. Specifically, the transplanting survival rate is increased to 95% by the magnolia tree full-crown reserved transplanting method.

The invention discloses a greening big seedling full-crown planting method. The method comprises the steps of 1, planting hole preparation; 2, full-crown nursery stock selection; 3, full-crown nursery stock pruning; 4, nursery stock protection; 5, preparation before lifting; 6, lifting; 7, lifting and packaging; 8, truck loading and transportation; 9, planting; 10, maintenance; 11, pruning; 12, winter protection; 13, management after planting. The greening big seedling full-crown planting method is reasonable in design and scientific and effective in management, according to the method, the survival rate of the greening nursery stocks is greatly increased, meanwhile growth after planting is fast, landscape is formed fast, and the ecological and social benefits are obviously improved.

The invention discloses a mandibular premolar severe wedge-shaped defect fiber post restoration. The mandibular premolar severe wedge-shaped defect fiber post restoration comprises a single fiber postand a wedge-shaped composite resin filling, and the single fiber post is a cylinder with the tail end diameter being 0.7-0.8 mm and the occlusion square diameter being 1.3-1.6 mm; and the height of the single fiber post is 6.0-7.5 mm less than that of a tooth length. The depth from the tip end to the bottom end of the wedge-shaped composite resin filling is 1/2 to 2/3 of the buccolingual diameterof a dental cervical part, the width of the wedge-shaped composite resin filling is from the mesial proximal surface to the distal mandibular premolar of the mandibular premolar tooth, the thicknessis 3.0-5.0 mm, and the wedge-shaped composite resin filling encircles occlusal 1/3 to middle 1/3 junction of the singe fiber post. The single fiber post of the restoration is positioned in a buccal root canal, and the fiber post is compounded with the composite resin by using the connection and auxiliary retention effects of the fiber post in order to directly complete the restoration without fullcrown.

The invention relates to a soilless full-crown transplanting method, and belongs to the technical field of transplanting and cultivating of trees. The invention provides the soilless full-crown transplanting method. According to the soilless full-crown transplanting method disclosed by the invention, the root of a tree to be transplanted is cut off, nutrient substances are injected, the tree to be transplanted is transferred to another soil environment, and the supply of the nutrient substances is continuously kept, so that the root of the tree to be transplanted can be completely separated from the original living soil after being dug and can survive in new environment; therefore, the survival rate of the transplanted trees is increased to a great extent; what's more, in the process of transplanting the trees, the roots do not need to carry cumbersome original soil, so that the weight of the transplanted trees is greatly reduced, and human resources and material resources are saved. The method disclosed by the invention is unique, examples prove that the transportation is convenient in the operation process, and besides, the survival rate is as high as 99.7%.

The invention discloses an all-porcelain tooth preparation method. The method comprises the following steps: firstly providing a seating path; then providing edge lines so that the edge lines are located at the most protuberant point of a neck edge; and then providing a seating parameter; establishing a full crown shape according to all-porcelain conditions; drawing an incising line so that: anterior: at a buccal side and a lingual side, the incising line is located above a neck-edge line for 1.5-2 mm and is parallel to the neck-edge line, and mesial and distal incising lines are located belowa contact point; posterior: at the buccal side and the lingual side, the incising line is located above the neck-edge line for 1.5-2 mm, and mesial and distal incising lines are located below the contact point; and then providing an incising parameter so that the compensation parameter of the anterior is half of an occlusal space, and the compensation parameter of the posterior is half of the occlusal space; an incising amount being 0.5 mm and re-trimming an incising crown; establishing a connector between two adjacent tooth; and finally performing handmade porcelain. The invention greatly improves the strength of dental crown, simultaneously avoids the occurrence of translucency in the case of insufficient tooth preparation, and accelerates the production efficiency of all-porcelain tooth.

The invention provides a full-digital design method for synchronously designing a tooth pile core and a crown by a computer. The method comprises the following steps of: synchronously completing pile path preparation and full-crown abutment tooth preparation for an affected tooth to obtain a silicone rubber impression including the pile path of the affected tooth and the full-crown abutment tooth form; modeling an impression scanning piece; designing a personalized pile core, and cutting and manufacturing a digital pile core by referring to an STL file; changing the gap of the pile core binder to a negative value at the beginning of the pile core design, so that the designed and output new pile core can smoothly penetrate into the digital model of the remaining tooth body, thereby fitting the new pile core and the remaining tooth body into a whole; and designing a full crown to achieve full-digital synchronous design of tooth pile cores and crowns. According to the method, the full crown can be immediately designed on the basis of the digital pile core after the digital pile core is designed by the computer, the pile core, the tooth body and the full crown are tightly combined at the computer level, the defects of an existing digital pile core technology are overcome, and the purposes of optimizing design steps, shortening the pile core and crown repair period of a patient and simplifying the manufacturing process of a technician are achieved.

The invention belongs to the field of prosthodontics and repair processes, and discloses an integrated telescopic crown retainer based on 3D printing and a manufacturing method thereof. According to the manufacturing method of the telescopic crown retainer, a full-crown form is firstly generated according to set secondary crown parameters, and then the secondary crown is formed through back-cutting so that ceramic layers on the secondary crown and the subsequent secondary crown have enough thickness and better forms, the accuracy and the stability of combination of the primary crown and the secondary crown are ensured, the pre-designed full crown form is also beneficial to subsequent processing and manufacturing, and the final telescopic crown retainer finished product can better produce normal functions of teeth; and the secondary crown is designed firstly, and then a telescopic crown retainer bracket is designed so that the accuracy of the relative position and the connection stability of the telescopic crown retainer bracket and the secondary crown can be ensured.

The invention provides a roof greening full-crown planting method of sweet-scented osmanthus. The method is characterized by including the steps of seedling lifting, planting and maintaining and further including the step of transporting, in the seedling lifting stage, the measures such as reserving soil balls according to the ground diameter of a seedling, coating and binding the soil balls, spraying root protecting solution and removing leaves are taken in spring or autumn, and the survival rate of trees is increased to a great extent; in the planting process, on the aspects of selecting plant pit size and backfill soil, setting bottom filter layers of plant pits, keeping moisture, protecting root systems and the like, scientific implementation and control are conducted, timely and strict moisture supply and maintenance are conducted after planting, and the survival rate of trees is ensured; after plants survive, by covering mushroom soil (rich in humic acid), rooting is conducted, soil pH is improved, and the method is more suitable for the growth environment of sweet-scented osmanthus.

The invention discloses an application of a fibrous strip for preparing a pulp-perforation cracked molar repairing body. A crack of a pulp-perforation cracked molar is located at a dental crown occlusion face along a developmental groove in a mesial and distal direction and is parallel to a tooth long axis. The depth of the crack is 1.0 mm from the pulp perforation position to the cemento-enamel junction in a root direction, and the width of the crack is 0.01-0.10 mm, and the thickness of the fibrous strip is 1.0-1.5 mm, and the width is 2.0-3.0 mm. The fibrous strip is located at a dental crown occlusion face in a direction vertical to the crack, or the fibrous strip is located in a medullary space to form rectangular laying, or the fibrous strip is located in a medullary space to form annular laying. The thickness of the fibrous strip is 1.0-1.5 mm, and the width is 2.0-3.0 mm. The fibrous strip is added in a resin repairing body, can improve stress concentration on the tip of the pulp-perforation tooth crack from a maxillary first premolar in a mesial and distal direction, and can efficiently prevent further development of a full crown lower crack. An excellent effect is obtained by performing annular laying of the fibrous strip in a direction vertical to the crack level in a medullary space.

The invention relates to a method to quickly grow small trees of Lagerstroemia indica by heat and DBH (diameter at breast height) separate cultivation and is intended to solve the problem that high-quality trees of Lagerstroemia indica have long production cycle so that the garden landscaping requirement cannot be met in time. Growth of Lagerstroemia indica trees is carried out in two phases, height growth phase and DBH growth phase, with close planting of tree height and sparse planting of DBH; nutrient elements are scientifically proportioned and fertilizers are combined according to the growth rules of tree height and DBH and nutrient demands of trees; fertilizers are scientifically proportioned and applied according to different growth rhythmic stages in conjunction with reasonable pruning; growth efficiency of tree height and DBH is effectively improved. The method has the advantages that the growth cycle of Lagerstroemia indica trees is greatly shortened, small trees 5-6 cm in DBH can be grown in 3 years, scientific application of fertilizer helps effectively promote growth and prevents fertilizer waste, reasonable pruning helps quickly rear and reserve the crown, the crown of each plantlet is full, healthy and stylish, the grown small trees of Lagerstroemia indica have developed absorbing roots, and landscape can be formed instantly by full-crown transplanting.

The invention discloses a manufacturing method and a guide plate for post-core shaping and repairing of residual root and residual crown, and relates to the technical field of oral auxiliary medical equipment and preparation thereof. The method includes: A1. Model and CBCT jaw model; A2. Adjust the digital model of the upper and lower jaws to obtain a digital model of crown restoration; A3. Reduce the digital model of crown restoration according to a predetermined value to obtain a digital model of resin core; A4. Register the digital model of resin core and CBCT For the jaw model, obtain the digital model of the post and core shaping repair guide; A5. Make the digital model of the post and core shaping repair guide into an entity; first obtain the full crown restoration after crown restoration, and then proceed with the full crown restoration as the guide. Reduce and obtain a digital model of the resin core, which not only reserves enough space for crown restoration, but also reduces the waste of resin materials and the time for clinicians to trim the resin core.