Volume 23 – Issue 2 (April – June 2014)

Dental avulsion is a common type of trauma that results in the complete displacement of tooth from the alveolar socket. Although the ideal treatment would be the immediate re-implantation of the tooth at the site where the trauma took place, this may not be practically possible in every case. Hence, the avulsed tooth may have to be placed in an appropriate storage or transport medium until it is re-implanted. The biological properties of the storage medium have significant impact on the success of re-implantation, as it must be capable of preserving the vitality, clonogenic and mitogenic ability of the PDL cells for successful re-implantation.

KEY WORDS:

Dental trauma, Avulsed teeth, storage media, PDL cell viability.

OBJECTIVE:

The aims of this study were to determine the relationship between dietary habits and dental erosion (DE) and to determine the prevalence of DE and degree of severity in dental students of LUMHS, Jamshoro, Pakistan.

METHODOLOGY:

Two hundred dental students fulfilling the inclusion criteria were selected with convenient sampling. The design of the study was cross sectional. The Dental students with age from 18-25 years of either gender were included. All the information regarding variables of study like age, gender and dietary habits were obtained using a pre designed questionnaire. DE and its severity were recorded for anterior and posterior teeth.

RESULTS:

The prevalence of dental erosion was 32 % (34 males and 30 females) being higher in males than females. Total 136 (68 %) students were at normal level, Moreover 37 subjects (58%) had DE in anterior teeth only. However 08 subjects (12 %) were seen with DE in posterior teeth only. In addition total 19 subjects (30%) were found to have DE in both anterior as well as posterior teeth. Out of 64 study subjects with DE 61 (95 %) had mild DE, only 03 (5%) subjects had moderate DE. No case of severe DE was observed in either anterior or posterior dentition. Association between dietary habits and DE was found statistically non significant in this study.

CONCLUSIONS:

It is concluded that prevalence of DE is 32%, more common in male students and anterior teeth and there was no any case of severe DE. No significant association was found between DE and dietary habits.

KEY WORDS:

Dental erosion, Prevalence, Lussi index, Dental students, Diet

BACKGROUND:

Single nucleotide polymorphisms (SNPs) in the promoter region of the b-defensin gene DEFB1 have recently been shown to be associated with altered risk of developing caries in permanent dentition.

OBJECTIVE:

We therefore sought to establish whether DEFB1 SNPs conferred a similar risk in primary dentition.

METHODOLOGY:

DEFB1 genotypes (rs11362 and rs1800972) were studied in 178 children, of whom 92 had caries.

CONCLUSION:

No association between genotype and phenotype was detected, even when more severe caries was considered as the phenotype. These and other data suggest that non-genetic factors may be greater modifiers of caries risk in primary dentition.

DECLARATION OF INTERESTS:

There are no conflicts of interest to declare.

KEY WORDS:

Dental caries, primary dentition, -defensin, single nucleotide polymorphism.

OBJECTIVE:

The aim of this study was to compare mandibular vertical asymmetry between cleft lip palate and normal class I occlusion subjects.

METHODOLOGY:

The sample for this study consisted of total 64 subjects divided into two groups:Group1consisted of 32 non-syndromic repaired cleft lip and palate subjects[ further divided into:16complete unilateral and 16complete bilateral cleft lip and palate].Group2 consisted of 32 subjects with normal facial morphology and class I occlusion.Both groups included males and females with age14yr-16yr[mean age cleft group14.6yr±.73yr,and normal group14.8yr±.73yr]. Mandibular asymmetry index [condylar,ramal,condylar plus ramal] and gonial angle measurements were calculated on dental panoramic radiograph.

RESULTS:

Calculated descriptive statistical measurements between normal subjects and cleft lip and palate group shows statistically significant differences in both condylar and ramal asymmetry index but over all intergroup comparison of condylar plus ramal height asymmetry index did not show any significant result.

CONCLUSION:

Mandible in cleft lip and palate subjects was found to be normal . However, in unilateral cleft lip and palate a difference was found in condyle, ramal and gonial angle between cleft and non-cleft side.

KEY WORDS:

Mandible asymmetry, Unilateral cleft lip and palate, Bilateral cleft lip and palate.

Indirect fixed restorations are a product of multiple clinical and laboratory steps. And at the center of all these procedures is the use of cast and die material and its impact on the definitive fit of the restoration. Dental stone has long been used as a cost-effective cast and die material for fixed prosthodontics. However in cases of periodontally involved teeth having tall and thin tooth preparations, die stones lack the desired ideal mechanical properties of fracture strength and abrasion resistance. Polyurethane resin die material has long been introduced to the dental laboratory technician and has provided a viable alternative to die stone in order to avoid failure in complex prosthodontic procedures. This case report attempts to present the effective use of polyurethane resin dies during full mouth rehabilitation of a patient with generalized tooth wear.

Toothache is one of the most common complaints for seeking dental care, and yet diagnosis of pulp disease is often difficult due to the seemingly unclear symptoms. Even in the presence of a detailed history and a thorough clinical examination, sometimes diagnosis is difficult and can be further complicated by presence of a pathology in the surrounding anatomical structures and phenomeno n of referred pain. A delay in diagnosis can lead to a delay in treatment therefore causing an undue distress to the patient.

CONCLUSION:

Diagnosis sometimes is a challenging process and needs more vigilance on the clinician’s side as well as regular follow-ups by the patients so that adequate treatment can be provided without undue outcomes and complications.

KEY WORDS:

Maxillary premolar, retention cyst, endoantral syndrome.