Teeth arrangement made easy! PART ONE


one of the biggest fears in the mind of
dental student is teeth arrangement. Hindi* (And it’s obvious because it takes days to align just a single tooth for newbies.) so if you two are fed up of running back
and forth to the teachers for your teeth arrangement approval and want to learn
the right way do watch this video till the end because here I will be covering
an in-depth demonstration of the same hi this is Hina, the voice behind dr. teeth
why smash your head in your textbook when we are here to make dentistry easy
for you so before we proceed to the video don’t forget to smash that
subscribe button and also if you found the video helpful don’t forget to like
and comment as it motivates us to create more videos of this kind. For more
amazing content don’t forget to visit our website where we have MCQs courses
and much more so let’s begin hello everyone assalamualaikum I hope
you are doing fine welcome back to dr. teeth
I am Dr. Hina and I make dental videos with an intention to help dental
students so if you like my efforts please do subscribe share and comment as
the numbers will motivate me to create more content of this kind before we
begin the teeth arrangement it is mandatory for us to know what we are
aiming to achieve and not just know but have a very clear picture of it in our
mind before we even start this mental picture will help us get closer to
perfection how by comparing the picture we already
have in our mind with our work and rectifying the mistakes so in this
demonstration I will be trying my best to create a mental picture that you can
always imagine and do your teeth setting so that you get it right
…Hindi*…. In english do let me know in the comment section below if i am able to create
that mental picture in your mind remember we had marked the midline of
the rim right and we start by placing the maxillary central incisor now each
of these teeth will have to be placed keeping in mind three views the facial
view, the proximal view and the occlusal view. Now what all can you see from the
facial view let us imagine. From the facial view means from the front of the
rim we will be able to see if the teeth is on the occlusal plane or little above
the occlusal plane or little below the occlusal plane right also from the
facial view we will be able to see if the long axis of the crown is parallel
to the midline right or if it is tilted either distally or Mesially, okay. From the
proximal view means if we look either from the mesial side or from the distal
side we can check the proclination or retroclination means we can check
whether our teeth is proclined means little forwardly placed or retroclined
means little inwardly placed. Now finally from the occlusal
view we will be able to see the arch form means the arch form the teeth makes by
tilting them okay and again their position. Starting with the
anterior-posterior placement means whether the teeth is proclined or retroclined
and if it is proclined how much proclined okay. Now it is important that the
artificial teeth are in the same position as the natural teeth so for the
maxillary anterior teeth this position, this natural position is slightly proclined depending on the arch form. Now how do we determine how much proclination
does the teeth have. One way is that we can consider the incisive papilla. We
will pass a line from the center of the incisive papilla and one line from the
labial surface of the incisor now this distance ,the distance between the center
of the incisive papilla to the labial surface of the central incisor, it
should be of a certain amount and this varies according to the arch form for
square arch it is 5 mm, for avoid arch it is 6 mm and for tapering arch this
distance is 7 mm. Generally the maxillary anterior falls on the sulcus of the
mandibular anterior. Now one problem we face while teeth setting is due to ridge
resorption. We all know that we have ridge resorption in edentulous patients so
because of that ridge resorption the tooth arranged, it tends to occupy on
the ridge position now this has to be avoided this will not provide the proper
lip support, you know, this will not be aesthetic and also not be good for
phonetics of the patient ok so without going into more details i should realize
that this is a demonstration video not a full-fledged lecture video. I’ll
probably create a more theoretical oriented video on this topic but for now
i think this is sufficient. Let us start with a demonstration we’ll heat up our
wax knife and scoop out the wax roughly equal to the dimensions of the
tooth. Now first of all place the central incisor roughly in the position and
we’ll adjust it. So we have placed the central incisor, now let us look it from
the a facial view what all can we see the tip of the CI the tip of the CI it
should touch the occlusal plate remember now secondly since this is an ideal rim
and it has a square arch form the central incisor should be straight means
the long axis of the central incisor should be parallel to the midline now
this varies with the arch form and can be seen in this diagram here here you
can see that depending on the type of the arch form the inclination of the
central incisor is different okay in case of the ovoid arch form it is
slightly tilted distally and the neck while in the square tapering or the
tapering it is more tilted distally the neck is more distally tilted so depending
on the arch form we have to align the long axis of the central incisor from
the facial side. Now let us check from the lateral side now from the lateral
side there should be slight proclination as determined by the distance between
the incisive papilla and labial surface of the teeth as already told or
another way that the teeth should fall in the sulcus of the lower teeth now
from the occlusal view we can appreciate that the incisal edges will follow the
arch form now the tooth positioning can be modified to give certain visual
effects like if you put the central incisors this way they’ll appear normal
but if distally they are tilted they will appear small and if they are placed
straight they will appear larger and will give an effect of boldness and
strength so in the male patient you can arrange the central incisor straight.
Coming to the lateral incisor let us place the lateral incisor by the same
process scoop out the wax and place roughly the lateral incisor now from the
facial view what all we have to check first of all it has to be 0.5 to 1 mm
short of the occlusal plane the neck will be tilted
distally means in this case the long axis of the tooth will not be parallel
to the midline right it is tilted distally at the neck, also the neck is
slightly depressed so we put a little pressure on the neck area to depress it, right, and after we do that we adjust the incisal edge so that they are in line
with the central incisor now when we look it from the proximal view since the
neck is depressed it appears more proclined. though it should not be ahead of
central incisor it should be in line with the central incisor following the
arch form ok. From the occlusal view the mesial incisal edge of the lateral
incisor should be in line with the distal incisal edge also it should
follow the arch form okay. The next one is the canine. Again do the same process
scoop out the wax and place it roughly now when you have that imagination in
your mind after watching the video you will be able to place the canine in
almost the correct position in the first go itself but since I am just
demonstrating it for the first time I am just saying that keep it roughly but if
you have the knowledge already which you will get after watching this video
obviously you will be able to keep it in the almost correct position now from the
facial view the tip should be touching the occlusal plate. The long axis of the
tooth should be parallel to the midline or the neck can be slightly distally
also note that the neck should be prominent means the neck should be
little outward compared to the tip now from the facial view you should be able
to see only the mesial labial portion of the tooth rest of it will be hidden from
the front view remember that now from the proximal view we can appreciate
almost vertical long axis of the position of the canine an occlusal view
it follows the arch form and placed at the corner of the rim or arch now here
the mesial cusps slope is in line with the distal incisal edge of the natural
incisor draw a line from the canine tip to the
other canine tip or just you know a straight line from the canine tip
towards the other side it will pass through the distal border of the
incisive popula so this is also an important thing to keep in mind. Now we
are done with the teeth arrangement of the maxillary anteriors, now let’s move
on to the mandibular anteriors, okay. So here we can heat up the rim so that it
becomes moldable and we can fix the the central incisor now if you look at
the central incisor from the facial view you can see that the long axis of the
teeth is parallel to the vertical axis or the midline. Now if we see the central
incisor we can appreciate that the long axis of this tooth is parallel to the
midline or the vertical axis here the incisal edge will be 1 or 2 mm above the
occlusal plane, obviously because we need that overbite the normal overbite is 2
to 3 mm so we are free to achieve that by doing this by placing it 1 to 2 mm
above the occlusal plane. Now from the proximal side the neck will be depressed
and it will have a slight labial inclination. If we look from the occlusal
surface both the right and left central incisor will be in a straight line.
Coming to the lateral incisor from the facial side the long axis inclines
distally and the neck as we can see here and again the incisal edge will be 1 to
2 mm above the occlusal plane proximally the long axis will slope labially but not
as much as the central incisor, little less than that and from the occlusal view
we can see that it follows the curvature of the rim now at this level
check the overjet in overbite the normal is 2 to 3 mm for class 1. Now coming to
the canine from the facial side we can see it has more distal inclination and
the neck and it is also 1 to 2 mm above the occlusal plane approximately we can
see that the neck is a bit prominent making the long axis a bit
lingually the neck is bit prominent and the tip is little lingually it is going
inside, it seems like it’s going inside, and from the crucial view we can see
that the canine falls at the corner of the arch and also it follows the art
form. We remove the unwanted wax by heating the area with a chip blower and
using a sharp pointed instrument like a lacron carver or the pointed end of a
wax spoon. So, this is our anterior teeth
arrangement and since you’re here at the end of the video I am hopeful that you
like my hard work in creating this demonstration and if you did please
don’t forget to subscribe like comment and share because the numbers motivates
me to create more videos of this kind also let me know in the comment section
below if you want me to post the demonstration of posterior teeth setting
in the near future. With that said I am signing off to meet you in the next
video, Allah hafiz. *I got a sore throat, thanks to continuous speaking in this video! 😀

Michael Martin

21 Responses

  1. Thank,s for given this type of video me also wait for next video its a most helpful me also wait every time for new video..u are so good that,s all…

  2. Please mam make a vedio on posterior teeth arrangement also…..I was so helpful…
    Will be waiting for your vedio and please don't delay it mam….

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