Ernstsenpierce3404

To propose an alternate, r eliable, and easy-to-use functional swallow method for establishing the posterior palatal seal.

Accurate r egistration of the posterior palatal seal is crucial to the success of the maxillary complete denture. The conventionally used functional "Ah" technique may not be r eliable at times to record the posterior palatal seal, hence compromising the retention of the maxillary complete denture. Case description and technique A 70-year-old female patient requiring complete dentures presented with an unusually tense soft palate during the phase of posterior palatal seal development. The soft palate did not relax and remained in a superior position when the "Ah" functional method was used to record the seal. The posterior palatal seal area could not be compressed sufficiently during border molding, preventing the formation of an adequate seal. N-Formyl-Met-Leu-Phe Hence, a new functional technique was devised to relax and displace the soft palate for developing an effective seal. This case report describe in charge of developing the seal rather than relying on the arbitrary cast scrapping by the technician. Also, the seal can be achieved by employing commonly used materials.

Coronavirus disease-19 (COVID-19) is a r ecent pandemic that is advancing at a r apid r ate. The future course of the disease includes severe r espiratory infection and also leads to death if unattended. Meticulous measures are necessary before attending any patient. The dental operatories and the clinic surroundings must be well sanitized so as to prevent the spread of pandemic.

This r eview discusses in brief about the pathophysiology and course of COVID-19. Further, we discussed in detail the management aspects of patients in periodontal perspective and the sanitization procedures required for the dental clinic.

The SARS coronavirus enters the human circulation via the angiotensin-converting enzyme (ACE) receptors which are also found on the oral mucosal surfaces. Furin and Cathepsin L are the pro-inflammatory molecules released during pathogenesis of periodontitis and mediate the molecular pathways that help the virus invade into the host. The clinic set-up should be modified to best suit the pandemic conditions. This includes the three phases, i.e., phase I preparatory phase; phase II implementation phase; and phase III follow-up. The patient management is explained based on the emergency needs of the patient based on the recent AAP classification of periodontal diseases and conditions 2017 as emergency, urgent, and elective treatment needs which have been explained in detail.

It can be strongly concluded that there is direct relationship between oral health and systemic health. The treatment procedures and sanitization protocols must be definitely modified. Further consensus and systematic reviews help us arriving at a more standardized protocol.

This review would help clinicians modify the way they treat patients in the clinic and provide better services depending upon the emergency needs of the patient.

This review would help clinicians modify the way they treat patients in the clinic and provide better services depending upon the emergency needs of the patient.

This case report presents the integration of a digital facially driven prosthetic plan to the computer-assisted implant planning for rehabilitation of edentulous arches.

Diagnosis of edentulous arches is hampered by the lack of intraoral references. However, a digital facial profile analysis facilitates the treatment plan, taking into consideration the harmony among teeth, lips, and face to restore a pleasant smile.

The first appointment consisted of digital documentation including intraoral scans, facial scans, and photographs. Based on these data, a smile frame was created to guide the digital wax-up. Cone-beam computed tomography (CBCT) scans were merged to facial and intraoral scans to perform the virtual surgical planning. Integration between facial, intraoral, and bone tissues were used as a reference to define implant position and prosthetic planning. The digital planning was integrated into the surgical procedure using stackable templates, and an immediate loading was performed. The interim prosthesis was manufactured based on the digital wax-up. With digital data, quality control could be performed to evaluate the esthetic outcome of the treatment.

An esthetic and functional rehabilitation was possible using the respective digital workflow to define harmony between a smile and facial tissues.

A digital treatment implant planning can be conducted considering patient's individual needs to improve the esthetic outcome.

A digital treatment implant planning can be conducted considering patient's individual needs to improve the esthetic outcome.

To compare r oot microcrack formation after r oot canal preparation using ProTaper Next in r otation or forward r eciprocation and Waveone gold in r everse r eciprocating motion.

Buccal r oots of 60 maxillary premolars with mature apices were selected, for different instrumentation techniques and divided into three groups. Coronal access was achieved and the canals were confirmed for apical patency. The canals were then instrumented using the following instrumentation techniques ProTaper Next in r otation or forward r eciprocation or Waveone gold in r everse reciprocation. The tooth was then subjected to sectioning using a diamond saw under water cooling and then was visualized under the stereomicroscope for dentinal microcrack.

The results showed that the maximum dentinal microcrack formed at apical 3 and 6 mm was in Waveone gold in reverse reciprocation followed by ProTaper Next in forward reciprocation and rotation. However, the

value was found to be not significant at 3 and 6 mm (

value-0.082 a, it was seen that rotational motion produced the least structural damage to the dentin.

This study aimed to digitally analyze the 3-dimensional variations existing between conventional impressions and intraoral scans made in edentulous maxillae.

Ten (

= 10) edentulous maxillae of patients seeking a maxillary complete denture were scanned using an intraoral scanner. The same participants were subject to the conventional impression procedure for the fabrication of maxillary complete dentures. The dentures' intaglio surfaces were scanned and superimposed over their corresponding IOS files with a 2-base best-fit alignment. Deviation analyses were calculated using the digital subtraction technique. Four anatomical regions were preselected to evaluate the deviations at these sites (posterior palatal seal, anterior border seal, the crest of the ridge and palate).

Based on the results and color maps of all selected regions, the overall difference between the two scans [IOS and denture intaglio surface scanning (DISS)] was not significant. The IOS technique allowed for predictable outcomes of treatment compared to those observed with conventional impression.