Lab 5 Design and manufacture for space maintenance of early loss of deciduous molar
Chenchen Zhou, DDS, PhD![]()
Department of Pediatric Dentistry, West China School of Stomatology, SCU
Keypoints:
◆ Commonly used kinds of space maintainers:
→ Band-and-loop space maintainers;
→ Lingual Holding Arch space maintainers;
→ Partial Denture space maintainers;
→ Distal shoe space maintainers.
◆ The indications for the use and loop space maintainers:
(1 )Early loss of first deciduous molar.
(2)A case of early loss of the second deciduous molar after the eruption of the first permanent molar.
(3)Early loss of bilateral deciduous molars and difficulty in using other space maintainers.
◆ Clinical & lab Procedures
Prarctice Steps
(1) Band Fitting
(2) Loop Making
(3) Welding
(4) Polishing
(5) Cementation
◆ Band or crown and loop maintainers:
A band or crown on the second primary molar /first molar with a soldered wire-loop extension extending forward to come into contact with the distal-cervical surface of the primary canine/the first primary molar in quadrant.

