Journal of Clinical and Diagnostic Research, ISSN - 0973 - 709X

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MBBS, MD (Pathology),
Sanjay Gandhi institute of trauma and orthopedics,
Bengaluru.
On Aug 2018




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Aug 2018




Dr. Rajendra Kumar Ghritlaharey

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Thanking you
With sincere regards
Dr. Rajendra Kumar Ghritlaharey, M.S., M. Ch., FAIS
Associate Professor,
Department of Paediatric Surgery, Gandhi Medical College & Associated
Kamla Nehru & Hamidia Hospitals Bhopal, Madhya Pradesh 462 001 (India)
E-mail: drrajendrak1@rediffmail.com
On May 11,2011




Dr. Shankar P.R.

"On looking back through my Gmail archives after being requested by the journal to write a short editorial about my experiences of publishing with the Journal of Clinical and Diagnostic Research (JCDR), I came across an e-mail from Dr. Hemant Jain, Editor, in March 2007, which introduced the new electronic journal. The main features of the journal which were outlined in the e-mail were extensive author support, cash rewards, the peer review process, and other salient features of the journal.
Over a span of over four years, we (I and my colleagues) have published around 25 articles in the journal. In this editorial, I plan to briefly discuss my experiences of publishing with JCDR and the strengths of the journal and to finally address the areas for improvement.
My experiences of publishing with JCDR: Overall, my experiences of publishing withJCDR have been positive. The best point about the journal is that it responds to queries from the author. This may seem to be simple and not too much to ask for, but unfortunately, many journals in the subcontinent and from many developing countries do not respond or they respond with a long delay to the queries from the authors 1. The reasons could be many, including lack of optimal secretarial and other support. Another problem with many journals is the slowness of the review process. Editorial processing and peer review can take anywhere between a year to two years with some journals. Also, some journals do not keep the contributors informed about the progress of the review process. Due to the long review process, the articles can lose their relevance and topicality. A major benefit with JCDR is the timeliness and promptness of its response. In Dr Jain's e-mail which was sent to me in 2007, before the introduction of the Pre-publishing system, he had stated that he had received my submission and that he would get back to me within seven days and he did!
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Dr. P. Ravi Shankar
KIST Medical College, P.O. Box 14142, Kathmandu, Nepal.
E-mail: ravi.dr.shankar@gmail.com
On April 2011
Anuradha

Dear team JCDR, I would like to thank you for the very professional and polite service provided by everyone at JCDR. While i have been in the field of writing and editing for sometime, this has been my first attempt in publishing a scientific paper.Thank you for hand-holding me through the process.


Dr. Anuradha
E-mail: anuradha2nittur@gmail.com
On Jan 2020

Important Notice

Dentistry
Year : 2011 | Month : February | Volume : 5 | Issue : 1 | Page : 163 - 165

Developing CL-II Div 1 Malocclusion- Should We Wait Or Intercept?

ANIL SHARMA*

*M.D.S (orthodontics)

Correspondence Address :
Dr. Anil Sharma Alignorthodontics,
B-280 G/F, Sector-57,
Gurgaon, Haryana-122002.
Ph: 09910088977, 0124-4294280
e-mail : alignorthodontics@rediffmail.com

Abstract

In our day to day practice, we come across many cases in which a class-II div-I malocclusion is developing due to the mesial drifting of the maxillary permanent 1st molars. This mesial drift could be the result of the loss of tooth material due to caries (1), the premature exfoliation/ extraction of the deciduous molars (2) or the ectopic eruption of the maxillary permanent 1st molars (3). A common advise at this juncture by a general practitioner, is to wait till the eruption of the full compliment of the teeth before initiating orthodontic treatment, thereby increasing the chances of premolar extractions for the correction of a full blown class-II div-I malocclusion. Presented in this article are cases in which a developing Class-II div1 malocclusion was successfully intercepted and corrected in the mixed dentition period.

Keywords

Malocclussion, Molar distallization, Pendulum appliance.

Case Report

CASE REPORT 1
The patient reported to the clinic at the age of 8 yrs with missing upper right and left deciduous 2nd molars . On examination, it was found that the patient had a dental class–II molar relation. Both the upper first permanent molars had migrated mesially and were rotated mesiopalatally, leaving little space for the erupting 2nd bicuspids. The consequences of this developing malocclusion were discussed with the parents of the patient and it was decided to intercept the developing malocclusion. The patient’s impressions were made and a pendulum appliance was fabricated to distallize the maxillary 1st permanent molars. The pendulum appliance was activated to deliver distally directed forces on the upper 1st permanent molars, thus pushing them back into the maxillary arch in order to create sufficient space in the maxillary arch for the erupting 2nd bicuspids. The appliance was kept in place for a period of eight months, in which time the molars were sufficiently distallized to create adequate space for the erupting premolars
(Table/Fig 1) Upper Occlussal view, showing premature loss of deciduous molar & mesially migrated & severely rotated upper right first permanent molar, (Table/Fig 2)(Table/Fig 3) Left & right lateral views, showing Cl-II molar relationship, (Table/Fig 4) Lower occlusal view, showing normal development of lower arch.
At the end of eight months, the molars had been pushed back in a Class-I relationship with respect to the lower 1st permanent molars. After the correction had been achieved, the appliance was removed, a Nance button was cemented in the upper arch and a lingual arch was cemented on the lower arch till the eruption of the cuspids and the bicuspids was complete. The developing malocclusion was thus successfully intercepted and the treatment ended without the need for braces or active orthodontic treatment at a later stage.

CASE REPORT 2
The patient reported to the clinic at the age of 9 yrs with a developing Cl-II div1 subdivision on the left side and little space for the eruption of maxillary canines . The treatment planning included the distallization of the maxillary 1st permanent molars to create space for the normal eruption of the cuspids and the premolars and to achieve a Class-I molar relationship. A pendulum appliance was fabricated and cemented on the maxillary arch. The appliance was kept in place for a period of five months, in which time an adequate distallization of the maxillary molars was achieved, to bring the molars into a class- I relationship, as well as an adequate space was achieved for the subsequent eruption of all the maxillary cuspids and the bicuspids.
Since the patient also had proclined upper anterior teeth and an increased overjet, a corrective orthodontic treatment with braces was followed to retract the upper anterior teeth in the Class-I occlusion. We were able to treat the case without extraction, thus saving the upper 1st bicuspids from being extracted if the case was delayed till after the eruption of the 2nd permanent molars.
CASE REPORT 3
A patient aged 8 yrs reported to the clinic with a history of premature extraction of the upper right deciduous canine and the first molar and subsequent loss of space by the mesial migration of the permanent 1st premolar into the extraction space of the deciduous canine, so that there was no space left for the eruption of the upper right cuspid. The patient presented with a developing Cl-II div1 Subdivision on the right side. It was decided to intercept the developing malocclusion without any further delay. The upper right molar was planned to be distallized with the Jones Jig appliance. The appliance was cemented in position with bands on upper right 1st molar & 1st premolar.
The distallization of the maxillary right 1st molar took place in a period of eight months, thus creating enough room for the maxillary right cuspid to erupt in the right place, as well as a Class-I molar relationship was also achieved on the right side. A Nance button was cemented in place till the eruption of all the permanent teeth was complete. The interceptive treatment was followed by corrective orthodontic treatment for the minor correction of the alignment after a gap of one year, when all the permanent teeth had erupted.

(Table/Fig 5)
(Table/Fig 6)
(Table/Fig 7)



Discussion

Class-II, Div-1 malocclusion i.e. the anterior positioning of the upper 1st molars in relation to the lower 1st molars is a very common problem in children today. Though the genetic component dominates the incidence of this malocclusion (4), the lifestyle changes in the urban population has given a new dimension to the same. The recent evidences show an increased incidence of nursing bottle caries, rampant caries and the early exfoliation of deciduous teeth, especially in the upper arch, thus leading to the mesial migration of the upper 1st molar, thereby developing a Cl-II div1 malocclusion . A skeletal Cl-II div1 malocclusion can indeed be easily managed in the mixed dentition stage with functional appliances, but a developing dental Cl-II div1 malocclusion is somewhat misunderstood and mismanaged by general practitioners. An interceptive treatment is often not suggested, but rather the patient is advised to wait till the eruption of the full compliment of the permanent teeth. Intercepting these cases early by upper molar distallization before the eruption of the 2nd molars gives the advantage of bringing the molar to its naturally destined position, thereby creating room for the normal eruption of the anterior teeth and a class-I intercuspation of the upper and lower 1st molars (5) (6).

Conclusion

The interception of a developing Cl-II div1malocclussion of dental origin, due to the mesial migration of the upper 1st permanent molars in the late mixed dentition stage, before the eruption of the permanent 2nd molars, gives less resistance for the distalization of the 1st molars to a position that they rightfully belong to. This gives the clinician enough room in the maxilla to attain an ideal Class-I molar relationship of the teeth, as well as avoid the extraction of the upper 1st bicuspids, which is the line of treatment for the correction of an increased overjet in a full blown, Cl-II div1malocclusion of dental origin. The amount of distal movement of the maxillary first molars is significantly greater and the anchorage loss is significantly lower before the second molars have erupted. The molar distalization time is also significantly shorter before the eruption of the second molars (7). The reason why it is more difficult to move the maxillary first molars distally after the second molars have erupted is, of course, because there is one more tooth, and thus, a larger area of root surface to be moved when the second molars have erupted. Thus, if there is an option to choose to move the maxillary molars distally in the mixed dentition or in the permanent dentition, it is an advantage to make this intervention at an early stage.

References

1.
Davenport IB. The significance of the natural form and arrangement of the dental arches of man, with a consideration of the changes which occur as a result of their artificial derangement by filling or by the extraction of teeth. Dent Cosmos 1887; 29:413–39.
2.
Hoffding J, Kisling E. Premature loss of primary teeth, part I: its overall effect on occlusion and space in the permanent dentition. ASDC J Dent Child 1978; 45(4):279–83.
3.
Kimmel NA, Gellin ME, Bohannan HM, and Kaplan AL: Ectopic eruption of maxillary first permanent molars in different areas of the United States. J Dent Child1982, 49: 294-299,
4.
Kathryn FS, Thomas JK, Eunice W: Influence of heredity in the etiology of malocclusion. American Journal of Orthodontics Volume 42, Issue 2, February 1956, Pages 125-141
5.
Gianelly AA. Distal movement of the maxillary molars. Am J Orthod Dentofac Orthop. 1998; 114:66-72.
6.
Ghosh, J. and Nanda, R. Evaluation of an intraoral maxillary molar distalization technique,
7.
Papadopoulos MA, Mavropoulos A, Karamouzos A. Cephalometric changes following simultaneous first and second maxillary molar distalization using a non-compliance intraoral appliance. J Orofac Orthop. 2004; 65:123-136.

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