- Email: [email protected]
Mixed dentition diagnosis and treatment
R@JND4'~~
DfSCUSSION
45
overbite. Although I had used crowns on the lower molars to open the bite, wearing the intermaxillary rubbers did not open the bite enough. The lower incisors jammed against the distal of the uppers with no progress. Other corrections having been made, I fitted the retainer, grinding the plate so that all lower incisors were occluding evenly in the groove and leaving the molars apart 2.5 mm. After it had been worn four months the molars came up to occlusion but were still distal. Upper bands were again replaced and intermaxillary elastics were worn for six months. Normal occlusion now having been established, a new retainer was made with a substantial groove for the lower incisor bite. I anticipate no further trouble. I call this a two-step bite retainer treatment. In view of the fact that it is estimated that 65 per cent of the cases presented at our offices are distoclusion cases, many of them deep overbites, this retainer is of greatest importance. It is possible to correct the irregularities and rotations in one year of treatment, and, if elastics are worn continuously, every minute of the day and night, the molars will be in normal relation in the same time. With incisors in perfect alignment, the upper impression is taken and the retainer fitted so that the molars do not occlude by about 2 mm. The patient will soon be on a one-visit-per-month basis for checkup, and the worry of retention is over except for the lowers. As there is no comparison between the results obtained with the Hawley retainer and Dr. Sved’s retainer, I would suggest that we give it the name of the Sved Bite Retainer. To avoid breakage I have added three strips of chrome matting as reinforcement. J. CAMP DEAN.
Mixed Dentition Diagnosis and Treatment The advisability of treating the average mixed dentition malocclusion seemed to be of the greatest interest to those present and, as most of the participants knew that I have spent many years in the study of this subject, the discussion was rather closely confined to the subject assigned. The majority of the queries were along the lines of why are most mixed dentition malocclusions worse after treatment than before treatment was begun. A short report such as this does not allow for an adequate answer to so large a question and, since my paper covering the results of my investigations on this subject will soon be published, I shall not attempt to give an answer here. HAYS N. NANCE.
DfSCUSSION
45
overbite. Although I had used crowns on the lower molars to open the bite, wearing the intermaxillary rubbers did not open the bite enough. The lower incisors jammed against the distal of the uppers with no progress. Other corrections having been made, I fitted the retainer, grinding the plate so that all lower incisors were occluding evenly in the groove and leaving the molars apart 2.5 mm. After it had been worn four months the molars came up to occlusion but were still distal. Upper bands were again replaced and intermaxillary elastics were worn for six months. Normal occlusion now having been established, a new retainer was made with a substantial groove for the lower incisor bite. I anticipate no further trouble. I call this a two-step bite retainer treatment. In view of the fact that it is estimated that 65 per cent of the cases presented at our offices are distoclusion cases, many of them deep overbites, this retainer is of greatest importance. It is possible to correct the irregularities and rotations in one year of treatment, and, if elastics are worn continuously, every minute of the day and night, the molars will be in normal relation in the same time. With incisors in perfect alignment, the upper impression is taken and the retainer fitted so that the molars do not occlude by about 2 mm. The patient will soon be on a one-visit-per-month basis for checkup, and the worry of retention is over except for the lowers. As there is no comparison between the results obtained with the Hawley retainer and Dr. Sved’s retainer, I would suggest that we give it the name of the Sved Bite Retainer. To avoid breakage I have added three strips of chrome matting as reinforcement. J. CAMP DEAN.
Mixed Dentition Diagnosis and Treatment The advisability of treating the average mixed dentition malocclusion seemed to be of the greatest interest to those present and, as most of the participants knew that I have spent many years in the study of this subject, the discussion was rather closely confined to the subject assigned. The majority of the queries were along the lines of why are most mixed dentition malocclusions worse after treatment than before treatment was begun. A short report such as this does not allow for an adequate answer to so large a question and, since my paper covering the results of my investigations on this subject will soon be published, I shall not attempt to give an answer here. HAYS N. NANCE.