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Removable anterior section for Hawley retainers
REMOVABLE
ANTERIOR
SECTION
FOR HAWLEY
RETAINERS”
BY AUGUSTUS B. WOLF, D.D.S., NEW YORK N CASES where a removable retainer is desired, I have found nothing more satisfactory than the Hawley retaining plate. However, in many instances, it is noted that the gold semicircular wire will break where it crosses the occlusal line, or close enough to the rubber plate to make repair difficult. To overcome this, I am suggest’ing a method for making the anterior work removable, either for repair or remodeling.
I
gold
Fig.
1.
Fig.
2.
Follow Dr. Hawley’s technic up to the point of waxing in the finished gold work, then proceed as follows: make a right angle bend in the semiCut 10 millicircular parallel with the palatal gingival line of the canine. meter sections from 14 gauge half-round tubing, also pin to fit it. Solder a cleat or notch the tubing to prevent it drawing out of the vulcanite. The half-round pin is now soldered to the semicircular at the angle formed at the gingival border of the canine, and is fit,ted, flat surface down, to the model as smoothly as possible. To the free tip of this pin is soldered a 4 millimeter section of 20 gauge soft gold round wire to be used as a lock. The tube is now fitted over the pin, the soft gold tip is bent at right angles to lock the tube in position. The gold work may now be tempered and the usual procedure of waxing up the case completed. At this stage, it is best to carve the wax, freeing both ends of the tube slightly, forming a shallow *Clinic Orthodontists,
presented Chicago,
before May
the Twenty-sixth 2-5, 1927.
Annual 524
Meeting
of
The
American
Society
of
groove for the soft gold lock pin. This mill prevent the vulcanite entering the tube, and provide space for ma.nipulation of the lock. The case is no\! the lock wirixs: packed, vulcanized and polished as usual. By straightening the pins and anterior gold work may be removed from the vulcanit[B. Fig. 1 shows the completed case ready for insertion in mouth. Fig. 2 (A) shows one side removed from half-round tube. The opposite side is in place with t,he soft gold wire bent, over ilt the end Of the tlibe 10 hold it in place. (A little compound may be used to fill in this qracr if desired.) Fig. 2 (B) shows appliance with anterior gold section removed for yeIt also shows the position of t,he IO mm. half-round tubt>s in the pairing. vulcanite.
American The fourth in Minneapolis,
Dental
Assistants
Association
Annual Meeting of the American Dental Assist:& Association Minu., August 21, 22 and 23, 1928, at the Learnington Hotel. Ruth
Montana July
The 9-13,
next meeting of 1928, at Helena.
State Board of Dental
the Montana For further
F. Rogers, Suite 1760, Chicago,
Secretary, 16 N. Wabash Ill.
br hvld
Arctrne,
Examiners
State Board of Dental information, address Dr.
will
Examiners
T. I’. Regau, Secretary. Helena, Montana.
uviI1
be
held
ANTERIOR
SECTION
FOR HAWLEY
RETAINERS”
BY AUGUSTUS B. WOLF, D.D.S., NEW YORK N CASES where a removable retainer is desired, I have found nothing more satisfactory than the Hawley retaining plate. However, in many instances, it is noted that the gold semicircular wire will break where it crosses the occlusal line, or close enough to the rubber plate to make repair difficult. To overcome this, I am suggest’ing a method for making the anterior work removable, either for repair or remodeling.
I
gold
Fig.
1.
Fig.
2.
Follow Dr. Hawley’s technic up to the point of waxing in the finished gold work, then proceed as follows: make a right angle bend in the semiCut 10 millicircular parallel with the palatal gingival line of the canine. meter sections from 14 gauge half-round tubing, also pin to fit it. Solder a cleat or notch the tubing to prevent it drawing out of the vulcanite. The half-round pin is now soldered to the semicircular at the angle formed at the gingival border of the canine, and is fit,ted, flat surface down, to the model as smoothly as possible. To the free tip of this pin is soldered a 4 millimeter section of 20 gauge soft gold round wire to be used as a lock. The tube is now fitted over the pin, the soft gold tip is bent at right angles to lock the tube in position. The gold work may now be tempered and the usual procedure of waxing up the case completed. At this stage, it is best to carve the wax, freeing both ends of the tube slightly, forming a shallow *Clinic Orthodontists,
presented Chicago,
before May
the Twenty-sixth 2-5, 1927.
Annual 524
Meeting
of
The
American
Society
of
groove for the soft gold lock pin. This mill prevent the vulcanite entering the tube, and provide space for ma.nipulation of the lock. The case is no\! the lock wirixs: packed, vulcanized and polished as usual. By straightening the pins and anterior gold work may be removed from the vulcanit[B. Fig. 1 shows the completed case ready for insertion in mouth. Fig. 2 (A) shows one side removed from half-round tube. The opposite side is in place with t,he soft gold wire bent, over ilt the end Of the tlibe 10 hold it in place. (A little compound may be used to fill in this qracr if desired.) Fig. 2 (B) shows appliance with anterior gold section removed for yeIt also shows the position of t,he IO mm. half-round tubt>s in the pairing. vulcanite.
American The fourth in Minneapolis,
Dental
Assistants
Association
Annual Meeting of the American Dental Assist:& Association Minu., August 21, 22 and 23, 1928, at the Learnington Hotel. Ruth
Montana July
The 9-13,
next meeting of 1928, at Helena.
State Board of Dental
the Montana For further
F. Rogers, Suite 1760, Chicago,
Secretary, 16 N. Wabash Ill.
br hvld
Arctrne,
Examiners
State Board of Dental information, address Dr.
will
Examiners
T. I’. Regau, Secretary. Helena, Montana.
uviI1
be
held