目的：研究天然牙-种植体共同支持式固定义齿的临床疗效。
Objective: to evaluate the clinical effects of tooth-implant supported fixed dental prosthesis.
本研究以上颌中切牙天然牙为解剖学基础建立了三维有限元模型。
A three-dimensional finite element model was built by using central maxillary incisor as its anatomical basis.
天然牙集中斜向载荷下最大应力值大于分散斜向载荷下的最大应力值。
On the tooth, stress under concentrated oblique loading was bigger than under dispersed oblique loading.
目的利用天然牙的牙根放置自行研制的球帽型附着体，增强覆盖义齿的固位力。
Objective Using stud type attachments on the natural root in order to get retention for overdentures.
失去了天然牙的功能和心理后果的，可以在许多情况下，予以纠正，完全更换义齿。
Loss of natural teeth has functional and psychosocial consequences that can, in many cases, be rectified with complete replacement dentures.
方法：用三维有限元法研究天然牙及中间种植体受力后的应力分布特点及位移规律。
Methods The stress distribution and displacement of abutment were studied and analyzed by means of three-dimensional finite element when different loading was applied.
结果：种植体与天然牙联冠修复时，种植体、天然牙骨界面颈部和根尖部出现应力集中；
Result:Stress concentration was markedly found on the neck and apex of bone-implant and bone-tooth interface;
目的：临床观察研究单纯种植体支持和天然牙与种植体联合支持修复下颌游离端缺失的效果。
Objective: To evaluate the clinical results of just implant supported fixed prostheses and tooth-implant supported fixed prostheses in the treatment of mandibular posterior free-end edentulism.
目的用患者本身的天然牙作为临时义齿的基础材料提供临时修复，并与传统的临时义齿作比较。
Purpose To make use of the patients crude tooth as the basic material for a temporary denture to offer temporary restoration, and to make comparisons with traditional methods.
结论：天然牙—种植体联合桥主要支撑力的部位是颈缘处，该处为种植体折断机率最大的区域；
Conclusion The main supporting force position is on abutments of the bridge supported by tooth-implant; The implant neck is the most possible area for fracture.
牙弓的形态和位置决定了牙齿的排列，只要可能，目标是将人工牙放置在原天然牙所占据的位置。
The arch form and position determine the placement of the teeth, and wherever possible, the aim is to place the artificial teeth in the same positions previously occupied by the natural teeth.
虽然最终结果不理想，由于小规模的捐助牙，美学和功能的牙弓部分恢复使用天然牙，而不是一个假肢。
Although the end results are not ideal due to the small size of the donor tooth, the esthetics and function of the dental arch are partly restored using a natural tooth rather than a prosthesis.
进行天然牙与种植体联合支持固定桥修复时，可在种植体端设计套筒冠固位体，以缓冲种植体周围骨组织的应力水平，防止或减轻种植体支持组织的损伤。
In designing the fixed bridge supported by tooth-implant, we can design telescope retainer on implant to reduce the stress of bone tissues around the implant and to prevent damages to bone tissues.
天然牙的视觉外观除了颜色的三要素色相、明度、饱和度以外，还有许多第二光学特征：半透性、浑浊度、晕色、表面光泽度、荧光性，其中以半透性最为重要。
In addition to value, hue and chroma, there are many subtle secondary optical properties of natural human tooth, such as translucency, opacity, iridescence, surface gloss and fluorescence.
香草美味的护牙小精灵咀嚼片，有趣可爱的动物形状，还含有天然护牙全食物的混合营养素。
Delicious vanilla tooth Fairy Chewables, in fun animal shapes, also contain a targeted whole food blend of natural tooth-friendly nutrients!
天然的软木衬，一种传统的葡萄牙材料，代表空间和土地之间的联系。
The natural cork lining, a traditional Portuguese material, is articulated in the connection between the space and the land.
天然的软木衬，一种传统的葡萄牙材料，代表空间和土地之间的联系。
The natural cork lining, a traditional Portuguese material, is articulated in the connection between the space and the land.
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