Dr. Rajat having 12 years of experience in private dental practice.Fellowship from the American Academy of Dentofacial Implant Dentistry, New York, USA. Fellow the International Institute of Replacement Therapy, 2012 and presented over 1000 cases in implant modalities 2004 (London) Advanced training in Occlusion the Institute of L D Pankey Association, Master training in Implantology with CE 1500 hours of training from the Tatum Implant & Reconstructive Surgery Institute
Monday, May 30, 2016
Thursday, May 26, 2016
Comparison of crestal single piece implants & two-three piece implants
Comparison of crestal single piece implants & two-three piece implants
Foremost thing before opting for any implant we ought to see the basic design of the implant. The single piece implant and the abutment are fused because they are manufactured as one piece while two-three piece implants and the abutment are separate. The abutment is either cemented or cold welded. But if the abutment is secured with a screw onto the implant, then it can be referred as three pieces.
A wide range of sizes and designs are available in single piece implants suiting various bone types which even help avoid bone augmentation and sinus lifts. Two-three piece implants have limited sizes and designs available thereby limiting their application. Single piece implants as its name suggests are concluded as single sitting surgical procedure and very often flapless without any necessary invasive surgical procedures.
These Implant procedures consumes less time than bridgework. Two-three piece implants usually very often requires more complex surgical procedures, over 2 or 3 sittings for 3-6 months (Implant placement, Healing Screw & Abutment Placement).single piece implants are a treat to the patients because of Immediate Loading – i.e. patient can be given the crown / bridge in the very next appointment. Two-three piece implants has to undergo delayed loading – approximately a waiting period of minimum of 3 months before loading the prosthesis onto the implants.
According to dentist point of view, for a single piece implant conventional impressions of the implants can be taken just as is the case with conventional bridgework. In case of two-three piece implants the prosthetic procedures requires more complex procedures and is time consuming. Single piece implants mostly work out a lot more cost effective in comparison with two/three piece implants which is expensive with respect to the costs of the implants.
For long term maintenance being a single piece, the strength provided by the implant is excellent and there is no separate root portion and abutment portion which makes it very simple. Two piece implants being two piece implants, the relation between the root portion and the abutment portion can present problems due to higher mechanical stress under oblique loading.
Maintenance of these implants are more complex… very often screws (when used) are to be tightened at periodic intervals as there will be micro-movement between the implant and the abutment. There are pros and cons of every dental treatment option available, single piece implants are not indicated in all the cases i.e. it’s indicated only in cases of good D1/D2 bone.
SMILE LINE
SMILE LINE
Mid - line
Heartwell defines the dental mid-line as
vertical imaginary line that doesn’t necessarily coincide with the facial
mid-line which runs vertically from the nasion, subnasal point, interincisal
point & pogonion, perpendicular to the interpupillary line. Ideally the
papilla between the maxillary centrals acts as a placement landmark &
coincides with the mid-line of the face. In 75% of cases maxillary &
mandibular midlines doesn’t coincide which is not esthetically unpleasant as
mandibular teeth are not usually exposed while smiling. It demonstrates that
the lower mid-line is not reference for the maxillary midline placement in
cases of lost midline (premature tooth extraction).In any unrestored dentition
slanting is an unacceptable major flaw.
Incisal length
The
position of incisal edge of the maxillary central incisor is the important
determinant in the creation of smile which sets a parameter upon which rest of
the treatment is built. Elongation of incisal edge is often indicated to
correct incisal wear, inadequate tooth display while shortening of incisal edge
is required to compensate for unaesthetic elongation by periodontal recession.
The visibility of central incisor while smiling rather than lips at rest tends
to render an older appearance to the dentition. Therefore the visibility of the
teeth when the mandible and lips are at rest is one of the most important
factors in dental esthetics. In case of compromised incisal edges the upper and
lower lips, exposed portion of the teeth are used as the reference points. When
the mouth is slightly open, approximately 3.5mm of the incisal portion of the maxillary
teeth is visible in a young person while mandibular teeth are barely visible.
As age increases, the muscles become lax and slowly diminish the display of the
maxillary incisors, while the visibility of mandibular incisors increases. The
pronunciation of F and V sounds should also be used to determine the
superior/inferior length of the incisal edges & buccolingual placement of
the upper maxillary incisors is evaluated. For the veneers the S sound is used
to determine the vertical height of dimension i.e the mandibular incisors
should be in gentle touch with the palatal surfaces of the mandibular incisors
being 1mm behind and 1mm below.
Zenith points
Zenith
points are the most apical points of the clinical crowns i.e height of contour.
They are located distal to a line drawn vertically through middle of each
anterior tooth dictated by the root form anatomy, cementoenamel junction,
osseous crest where the gingiva is scalloped the most. In Diastema closure the
zenith points should be repositioned distally to avoid mesially tilted appearance.
The extreme distal positions of the gingival zeniths will result in an
exaggerated triangular form. In order to avoid this zenith points should be
moved mesially to create an illusion of bodily shifted central incisors towards
the mid-line. Zenith points are moved apically through elongation in cases of
shorter teeth. Zenith points can enhance the perception of the tooth axis as
well as the length and the gingival shapes, achieved by horizontal or vertical
alterations.
Gingival health and embrasures
Ideally
interdental papillae should be thin and terminate on the tooth in a knife-edged
contour forming a pyramid-shaped confluence of the gingival margin of the
adjacent teeth. Healthy gingiva lies about 3 mm away from the intact bone on
the facial aspect and tip of the stable papilla is at a distance of 5mm from
the intercrestal bone. The gummy smile is corrected by placing the gingival
tissues apically.
Gingival levels and harmony
The
gingival line runs parallel to the canine line with a tangent through the
incisal edges of both canines. The tips of the papilla gradually follow a
pattern in the apical direction proceeding from the anterior towards the
posterior teeth, thus the volume of the gingival embrasures gets smaller. The
zenith points of the lateral incisors are 0.5 to 1mm below those of central
incisors and canines, while that of canines and central incisors remain on the
same horizontal drawn imaginary line. This relationship of zenith points forms
a type of imaginary triangle. In cases of gummy smile by maxillary overgrowth
with gingival display more than 10mm, only periodontal means will result into
nonproportional crown root ratios hence orthognathic surgery, orthodontics or
periodontal osseous surgery is advocated.
Tooth axis
In an
esthetic smile the direction of the anterior teeth and the long axis follow a
progression as the teeth are viewed from the mid-line towards the posterior
area. The axis of the central incisors is usually slightly tilted distally
towards the apex of the tooth when compared to the mid-line, perpendicular to
the interpupillary line. The lateral incisors are somewhat inclined distally
towards the apical than the central aspect. The canine tends to be even more
distally inclined viewed facially & follows a parallel line drawn from the
corner of the mouth to the corner of the eye while smiling
Interdental contact areas and points
The broad zone in which two adjacent teeth appear to touch is called as interdental contact area. Observation suggests that the 50-40-30 rule indicating the relationship between the anterior teeth i.e the interdental contact points (where incisal & distal surfaces of the tooth begin to converge at the incisal edges) moves apically as the teeth proceed from the central incisors towards the posterior area.
www.sachdevadentalcare.com
Incisal embrasures
A dark area or negative space seen in the anterior region between the incisal edges creates a contrast which enhances the appearance of the incisal embrasures. As the dentition progress away from the midline, the size and the volume of the incisal embrasures increase. The incisal embrasure is the smallest and sharpest in the central incisors. The incisal embrasures between the central and lateral incisors are larger than the incisal embrasures between the centrals with a relatively wide angle. The largest of the incisal embrasures exists between the lateral incisors and canine. The embrasures may also affect the perception of the length, width and the incisal edge. In an aged or worn dentition caused by the incisor loss of length, the incisal embrasures becomes small or may even disappear, to create a youthful smile ,these teeth have to be lengthened and the embrasures recreated.
Wednesday, May 25, 2016
Treatment of Gummy Smiles
Treatment of Gummy Smiles
How awkward are you to imagine
yourself to flash your smile with those extra gums being visible when you have
been invited to a momentous event? This is usually followed by an embarrassing
condition & hesitation to communicate, isn’t it? These are called as gummy
smiles.
At Dr. Sachdeva’s Dental Institute, we offer an exquisite treatment to
ensure that people don’t have to go through such self conscious circumstances.
This is repaired under supervision of experts after discussing various possible
treatment options implants, crowns etc of best quality ensuring that your gummy
smile vanishes without any side effects.
How can we
help with those gummy smiles?
If you are struggling to get rid of
a gummy smile, we are here to guide with the treatment options. Contouring of
gums is one of the widely advocated options by making your teeth look longer to
cover the excess part of your gums in order to repair the smile. However,
before proceeding with the treatment, it’s required to do a detailed study of
the dental structure, undergo series of tests and identify the source of the problem.
Quite often the irregularity in the structure of your gums is a consequence of
genetic disorder. In some cases, the treatment is often a combination of the
contouring of gums along with fixing of veneers.
This
procedure including a surgery seems to be painful, isn’t it?
Gum surgery is not a cup of tea for everyone.
Hence, if you opt for treatment at a reputed place like Dr.Sachdeva’s Dental
Institute; we don’t fail to deliver the best treatment with all the required
precautions to minimize risk of any pain or discomfort. In addition, we aim to
finish this hassle free for the patient who can take advantage at the
convenience of all facilities under one roof. We provide every facility from
implants to various other treatments made available at one place. This is to
assure that when you step in for treatment at our clinic, you don’t have to
rush from pillar to post with the burden.
Post
treatment safety measures
Previously repairing gums used to be
a tiresome process. Nowadays you don’t have to spare days recovering because after
the treatment, soon you can get back to most of your daily routine. The doctors
will help you follow the precautions that are must for the intial few days.
Also, our doctors are most likely to advice routine
follow-ups in order to keep a check on your progress. This is done to provide
the additional instructions to follow during your healing time to increase the
pace of recovery.
Immediate Implants in the Aesthetic Zone
Immediate Implants in the Aesthetic Zone
Dentistry has come a long way & the most foreseeable treatment plan to replace missing teeth is Dental Implant. However, the biggest concern about the success of implants in the anterior region is esthetics.
The two prime factors for the implant success in esthetic zone are the amount of alveolar bone present and soft tissue around the implant. The objective criteria for any kind of dental treatment justifying esthetics are gingival health, gingival zenith, tooth long axis, tooth characterization, surface texture & color,interdental contact point,incisal edge configuration, lower lip line, smile symmetry, midline & occlusal plan orientatin.Out of all these factors gingival zenith is an important factor to look for which affects others, because without its control the dental implant esthetics can be compromised.
Therefore,in order to maintain an harmonious relationship between intra oral components such as tooth shape,size,shade,position, gingival architecture level along with extra oral components such as smile line, vertical component of the face are rudimentary to dental esthetics & should be evaluated clinically before implant placement. Post extraction a cascade of healing process results in 25% of bone resorption. This process ultimately leads to resorption jeopardizing esthetics.
Hence the process to salvage the bone resorption begins with atraumatic resorption where the buccal bone is not lost and placement of immediate implants becomes quite easy.
At the same time implants placed immediately after extraction maximizes preservation of the remaining bone structure, maintaineance of soft tissue profile through temporary provisional, decreased total number of surgical phases and reduction for comprehensive time.
This procedure has become a routine since they have as much as survival rates as compared to implants placed post extraction. This protocol of immediately placing implants is widely accepted by the clinicians especially by the patients with maximum comfort & short treatment duration. Amidst all the procedures the most important criteria probably for the best outcome are intact bone wall & an ideal implant position.
Dr. Rajat Sachdeva
Thursday, May 19, 2016
Soft Tissue Grafting
to improve the Attached Mucosa at Dental Implants
This is in preposition of a treatment planning of an appropriate surgical technique for increasing the width of the attached mucosa in order to maintain Peri-implant health.
The soft tissue around gingival being divided into gingival and mobile alveolar mucosa, the gingival width varies individually as 2-9 mm.There is a time-point to distinguish the peri-implant mucosa from the gingival around the teeth: The peri-implant connective tissue has less number of fibroblasts & more collagen fibers’ as compared to gingiva. The junctional epithelium is more permeable with scarce number of blood vessels than that of around the tooth.
The peri-implant connective tissue fibers’ run in a parallel direction to the implant or abutment surface without being attached rather being perpendicular to the root cementum.
It has been concluded that presence of non-elastic collagen fibers’ in the connective tissue is responsible for keratinization. Based on findings, >2 mm of keratinized tissue is required for maintenance of healthy gingival tissues.However,around the dental implants, the crucial role of an adequate width of keratinized /attached mucosa for the clinical success is still controversial.
Recent studies have shown that lack of adequate width of Keratinized alveolar mucosa around dental implants is associated with more plaque accumulation, inflammation, soft tissue recession, attachment loss.
Since implant surgery includes one or two stage bone augmentation procedures, displacement of the mucogingival Junction does occur.hence, in order to regulate the width of keratinized attached mucosa, two different peri-implant soft tissue augmentation procedures can be concluded: Increase in soft tissue volume using a sub epithelial connective tissue graft or soft tissue replacement graft Enlargement of keratinized mucosa width by means of an apically repositioned flap/vestibuloplasty.
Porcelain Laminate Veneers-INSIGHT
Are you a candidate for dental implants?
Monday, May 16, 2016
Tuesday, May 10, 2016
Testimonial for clinical implant training in india
http://www.dentalcoursesdelhi.com/clinical-implants-training-10-days-courses/
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