XII Theoretical-practical course on microscrews

Type of programme
Specialization courses
between 17-03-2023 and 18-03-2023
1.5 ECTS
€510.00. *Prices corresponding to the 2022-2023 academic year.
Friday from 9 a.m. to 7 p.m. and Saturday 9 a.m. to 1.30 p.m.
Spanish (secondary language: English)
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Micro-screws are a common element of bone anchorage in modern orthodontics. Their clinical application, in situations involving anchorage loss or orthodontic movements in which conventional anchorage is ineffective, has constituted a major step forward for our profession. As a result, it is extremely important to have knowledge of the fundamental aspects of micro-screws and their use in clinical practice.

Course objectives

  1. Theoretical part: biological bases, anatomy applied to placement, types of micro-screws, indications for use and biomechanical bases applied to placement and use.
  2. Practical part: micro-screw placement based on example cases, with the help of experienced supervisors. 

Competences to be acquired by students

This course provides the theoretical and practical background necessary to begin using or optimise the use of micro-screws in clinical practice.

Prospective students

This course is intended for all Dentistry professionals: general dentists, orthodontists, periodontologists and maxillofacial surgeons. 



Course coordinator

  • Dr. Andreu Puigdollers

Theory programme

Introduction to skeletal anchorage

  • Introduction. Evolution of the concept of anchorage. Stability. 
  • Description of micro-screws and primary stability. 
  • Anatomy and insertion protocol. 

Indications and literature review

  • Handling and clinical applications of micro-screws. Protocol. Biomechanics
  • Two decades with micro-screws. 
  • Micro-screws in the tuberosity. 
  • Case studies and clinical situations involving micro-screws. 
  • Pre-prosthetic indications for micro-screws. 
  • Vertical changes and indications. 
  • Sagittal changes with micro-screws. 
  • Transversal changes. 

Practical programme

We will create two practice groups, which will switch later on.

Seminar on diagnosis, bone anchorage planning and mechanics. Simulation on typodonts.

  • Presentation of the case.
  • Treatment objectives.
  • Location and skeletal anchorage selection. Alternative treatment plans. 
  • Placement simulation with typodonts.
  • Resolution of cases.

Use of micro-screws on lamb's heads

  • Material preparation protocol.
  • Handling of manual and rotary instruments.
  • Practice with the movements:
  1. Parallel to roots.
  2. Between roots.
  3. On palatal suture.
  4. On jaw. Retromolar space and external oblique ridge.
  5. On tuberosity. 

Study programme and subjects 2022-2023

Subjects in course 1 Type Term ECTS
XII Theoretical-Practical Course On Microscrews Type: OB Term: Second semester ECTS: 1.5
  • ECTS: European Credit Transfer System
  • Term: calendar period
  • (a): subjects which are taught in English


Dr. Andreu Puigdollers

Prerequisites & admissions

  • To be a general dentist, orthodontist, periodontologist or maxillofacial surgeon.