The New Era of Orthodontic

Development in Orthodontic (Part II)


วันจันทร์ที่ 26 กรกฎาคม 2564
09:00 - 12:00

(Zoom Online Meeting)

The Meeting was finished



3 Directions in Orthodontic

Bracket Design

Orthodontic Wire

Orthodontic Mechanics

About this seminar

สัมมนานี้ จะเน้นแนวทาง mechanic ที่แนวโน้มจะไม่ถอนฟัน premolars มากขึ้น และหากจำเป็นต้องถอน จะเลือกทำ En Masse mechanic มากกว่า 2 step space closing (ดึง canine แล้ว ตบปิด 4 ซี่หน้า)



Bracket Designs

Story of friction

  1. Bracket Surface
  2. Arch wire
  3. Elastic

Factors effected

  1. Contact Interface
  2. Dynamic Friction Angle
  3. Interbracket Space
  4. Rotational Control


  • Single
  • Twin Bracket
  • Synergy Bracket

Friction & Bracket Design

  • Friction Problems
  • The friction increases with …Surface texture of

Tooth Color VS Metal

  1. Composite
  2. Ceramic

Development of Bracket

  • Ligated Bracket
  • Self Ligated Bracket

Evolution of Bracket

  • Twin Bracket
  • Flared Twin Bracket
  • SWLF vs Self Ligated
  • Low Friction Bracket


  • SWLF (Straight Wire Low Friction)


  1. Waving slot with Flared
  2. Six Tie Wings
  3. Higher Middle Tie Wing

Bracket Selection

  • Bimax protrustion
  • Max Prognathism
  • Class II, Div 2
  • Heavy Tongue Thrusting

Orthodontic Wire

Orthodontic Wires

  1. Martensite Stabilized Alloy
  2. SIM = Stress Induced Martensite
  3. TIM = Thermal Induced Martensite
Wire Stiffness Comparison Guide
  1. Force 9
  2. D-Rect
  3. Respond

SWLF Recipe

  • Treatment Chart
  • Wire Selection

The Concept

  • Superelastic Archwires
  • Stiffness Archwires

Ligation Option

  1. Incisors
  2. Canine – Premolar

Orthodontic Mechanic

Fixed Orthodontic

Standard Edgewise

  • Broussard Two-Force
  • Straight Wire
    – Bioprogressive
    – Biomechanic
    – Lingual Technique
  • Self Ligate Bracket

Begg Lightwire
  • Jarabak  Techique
  • MEAW [Dr. Kim Korea]
  • GEAW [Dr. Akiyoshi Shirasu Dr. Sadao Sato]
  • LH [Low Hysteresis]
  • Gummetal [Dr. Shin Hasagawa]

Removable Orthodontic

Interceptive Orthodontic

  • Invisalign
Functional Appliances
  • Mono Block
  • Twin Block
  • EF Line
Dr.Thaweesak Unprasert


Dr.Thaweesak Unprasert D.D.S.

Professional Background
  • Professional General Dentist
  • Teaching Topic: Amalgom Restorations for postgraduate student, department of Operative Dentistry, Faculty of dentistary, Mahidol University
  • Design Dental Equipment Dr. “U” Hand Instruments Set by Hue Friedy, USA. For  Amalgam & Composite filling
  • Teaching Topic: Bonding system for postgraduated student, Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University.
  • Guest Teacher for lecture & instructor in Faculty of dentistry, Srinakarinviroj University
Member Club and Association
  • The Dental Council Thailand Registration license no. 1674
  • Member of the Dental Council Thailand
  • The president of The Dental Association of Thailand
  • Teaching Topic: Bonding system for postgraduated student, Department of Prosthodontics, Faculty of Dentistry, Chulalongkorn University.
  • The Vice President of dental Trader Association of Thailand, DTAT
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