This document discusses the Hawley retainer, which is commonly used to retain teeth after orthodontic treatment. It consists of an acrylic baseplate with Adam clasps and a labial bow. The Hawley retainer is simple to construct and can be easily modified. It offers good anchorage and maintains expansion. However, it depends on patient compliance and may impair speech. The document provides details on how to fabricate a Hawley retainer, including making the Adam clasps, labial bow, acrylic base, and finishing and polishing.

1. HAWLEY RETAINER
DR. SALEH AHMED ALWADIE BDS, BSC, HIGH DIP LASER DENT&
HIGH DIP OF HEALTH MEDIA .
DENTIST AND DENTAL ORTHODONTIC TECHNOLOGIST TRAINER .
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2. DR.SALEH ALWADIE 2

3. Types Of Retainer
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4. HAWLEY
RETAINER
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5. ESSIX
RETAINER
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6. BONDED
RETAINER
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7. HAWLEY RETAINER
* Designed by Charles A Hawley .
* Used passively to retain teeth
in their new position following
orthodontic treatment.
* Most frequently used as
retainer.
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8. CONSISTS OF HR:
* Acrylic baseplate
* Adam clasps on 6s
* Labial bow with U
loops.
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9. INDICATIONS:
* Hold teeth in a new position after dentition has been
orthodontically corrected.
* Prevent relapse while bone fill occurs around the roots of the
moved teeth.
* Minor tipping movement of teeth mesio-distally and buccally.
* Correct simple anterior crossbites.
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10. MODIFICATION:
•Acrylated labial bow : to improve control of rotated teeth
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11. Soldered labial bow to Adams .c bridge : to minimize space re-
opening in extraction site
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12. Incorporate a bite plane for deep OB cases.
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13. ADVANTAGES
•* Simple to construct.
* Fabricated in lab, resulting in a reduced chair time.
* Can be removed for brushing, flossing and social reasons.
* Acrylic palate is rigid → offers significant anchorage, maintains
transverse expansion.
* Versatile → easily modified, and can be adjusted for finishing
of treatments.
* Durable → can last for several years.DR.SALEH ALWADIE 13

14. DISADVANTAGES
•* Success depends on patient compliance.
* May be considered unaesthetic due to labial bow.
* Speech might be impaired.
* Wire crosses the occlusal plane.
* Only tipping movements are possible.
* Rotated teeth are extremely difficult to correct.
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15. HOW TO FABRICATING HR
Adams clasp :- is the most retentive on fully erupted teeth
* 0.028-inch W
* Cut the interdental papilla on both side of the teeth.
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16. HAWLEY LABIAL BOW
•* The labial bow aids in appliance retention and maintains
alignment of anterior teeth after orthodontic treatment.
•* 0.030 inch W
•
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19. ACRYLIC BASE
* prepare the models .
* Separating medium, secure wires to model with wax and soaked
in water for 5 min .
* Salt & Pepper method involved applying monomer and polymer
directly to the model .
* curing the appliance in warm/humid ( 120F / 49C)pressure pot
under 20-30 psi for 12-15 min.
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20. ACRYLIC TRIM
* Lower R thickness=3-4 mm and the upper = 2.5-3 mm
* Using a grinding stone.
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21. USE CARBIDE BURS IN THE HANDPIECE
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22. FINISHING.
* Sandpaper mandrel and 150 grit strip of sandpaper in the
handpiece.
* wet medium-grade pumice is applied with a wet wheel on the
low-speed lathe.( Tripoli wheel ).
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23. POLISHING
Smooth polished surface of dental prostheses is important to
prevent bacterial colonization and plaque accumulation.
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