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●Tweed triangle(粹德氏三角)   

2010-01-04 14:47:14|  分类: 默认分类 |  标签: |举报 |字号 订阅

  下载LOFTER 我的照片书  |
A triangle formed by the mandibular plane, Frankfort plane, and long axis of the lower central incisor. Proposed as a diagnostic aid by C.H. Tweed.

 

TWEED’S ANALYSIS:

    Based on a triangle formed by the Frankfort horizontal (FH), the mandibular plane, and the plane drawn through the mandibular incisor axis to FH. The three angles in Tweed's analytical triangle are referred to as Frankfort mandibular angle (FMA), incisor mandibular plane angle (IMPA), and Frankfort mandibular incisal angle (FMIA).

    Tweed determined that the means of these angles for a normal dentition, in well balanced faces, are 25 degrees for FMA, 87 degrees for IMPA, and 68 degrees for FMIA(這是理想的平衡數據). According to Tweed, the treatment goal is to achieve an FMIA angle of 65 to 68 degrees. In cases with a high FMA (30 degrees and above), a FMIA of 65 degrees is an acceptable goal. In cases with an FMA below 20 degrees, the FMIA should be 68 degrees.

    Frankfort Horizontal plane - formed by connecting porion and orbitale.

        Mandibular plane - Tweed uses a tangent to the lower border of the mandible 

●Tweed triangle(粹德氏三角)  - lytornado - ly.tornado 的博客tweed triangle

●Tweed triangle(粹德氏三角)  - lytornado - ly.tornado 的博客dr. charles H. tweed

The Tweed Formula, Anchorage Preparation And Facial Esthetics

Craniofacial analysis of the Tweed Foundation in Angle Class II, division 1 malocclusion

Cephalometric analyis Overview(值得一看點入) ●Tweed triangle(粹德氏三角)  - lytornado - ly.tornado 的博客

JPO Interviews Dr. Charles H. Tweed, Part 2

Where Teeth Should Be Positioned in the Face and Jaws and How To Get Them There

How We Got from There to Here and Back (Derek Mahony, Specialist Orthodontist )

Cephalometric software: a trial on the road(G. Floria*, A.R. Mazzocchi**)

CEPHALOMETRIC ANALYSIS

Comparison of cephalometric norms between Japanese and Caucasian adults in antero-posterior and vertical dimension

Comparison and reliability assessment of p distance" with conventional lower incisor measurements.a long term cephalometrics study

adult mutilated dentition with anterior & lateral open bite

orthodontic glossary

analysis of holdaway soft-tissue measurements in children between 9 and 12 years of age

 computerized cephalometrics(這一篇裡面有提到tweed triangle的角度大小對矯正預後是否為好或壞的指標)

下顎門牙傾斜度與咬肌活性之相關性

case report~facial bablance & harmony~an attainable objective for the patient with a high mandibular plane angle

Dr. Robert Ricketts Interviewed by Dr. Larry White(part 1,2 ,3)

Where Teeth Should Be Positioned in the Face and Jaws and How To Get Them There

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