Read the Canine - Dont Hit him
- Andre Chen

- 5 days ago
- 3 min read
“Most upper 1st premolar implant mistakes don’t come from lack of skill — they come from not reading the canine.”
Good morning, ChatGPT. Good morning, world. Good morning, Lisbon.
Today we’re finally hitting 25°C. Real spring. I just finished an amazing climbing session — one more step toward conquering my 6C+ . Today I fell on a move I had never reached before. It was a nice feeling because a lot of people was watching and i´m baby steps to close the 6 deal and move to the 7A tackle ! Stay tuned for next week … I will do this one !!!
And that, by itself, is progress.
Because in climbing — and in implant dentistry — it’s not about reaching the top. It’s about going further than yesterday.
From Beirut to Lisbon… to real-life dentistry
I was supposed to be in Beirut with Elena for a nice IEXcel launch by Straumann. A childhood dream — to see Fenicia, the port, the history.
But geopolitical reality had other plans. The Middle East is at war, and no plane goes in or what a mess......
And suddenly, I was in Lisbon.Sunday. Family lunch. Burger in hand. Kids in the restaurant !! No clinical plans.
Until…Margarida calls me.
“We have a patient. She wants implants. Now.”
No guide. No navigation. Just experience.
So it's 2 in the afternoon, I´m in a call with Mayra from Straumann in the car and suddenly shift course to the clinic for implant placement !!!
10 mn after I’m there to start the case a look at the medical history , to the CBCT agreement light and off we go !!
This is the real message of this case:
👉 What do you do when you don’t have a surgical guide?👉 When you don’t have dynamic navigation?👉 When all you have is… your expertise ?
The so-called analog mode, in other words, lets go with the anatomical landmarks to do the implants in the correct prosthodontic position!
The problem - 2 Premolars to replace with 14 in a healed ridge and 15 in an immediate implant placement, both with immediate loading with non-occlusal contacts and 2 lower molars . Lets go !!!
The classic premolar mistake
I have seen may mistakes from students and myself and for sure One of the most common errors I’ve seen — especially when I was teaching — is this:
➡️ Placing a premolar implant and hitting the canine root apex.
Why?
The canine root is distally angulated
The crown is more upright
The operator follows the crown…
➡️ and the implant apex goes straight into the canine - a classy Phil as in the hangover movie …
A classic — and avoidable — mistake.
Read the canine (the key nuance)
Absorb what the anatomy is reeling you speak with
In this case, everything comes down to one principle:
👉 Read the canine.
Not the crown.Not the space.Not your intuition.
👉 The canine.
More specifically:
👉 Follow the distal slope of the canine cusp
That becomes your invisible surgical guide.
Clinical execution
Implant 14 (healed ridge)
Reference: distal slope of the canine
Preparation up to 2.8
Implant: 3.5 x 12 PLX
Direction pin to confirm axis
Implant 15 (post-extraction) — the real challenge
Here’s where finesse matters.
We need to achieve three things simultaneously:
Anchor in the palatal bone
Maintain parallelism with 24
Avoid the canine root
Strategy:
Initial drill entry:
👉 45° toward the buccal
Then:
👉 Redirect toward the palatal bone (for anchorage)
👉 Slight adjustment toward mesial (for parallelism)
💡 This 3D movement is everything.
If you miss it:
you lose stability
or you lose alignment
or you hit the canine
Outcome
Implant 24: 3.5 x 12 PLX
Implant 25: 4.0 x 8 PLX
Excellent primary stability
Restoration
SRA 2.5 abutments
Direct relining of provisional crowns
Immediate loading without occlusion
Jumping gap filled with xenograft
Sutured with provisionals in place
Result:👉 Two implants👉 One delayed + one immediate👉 Parallel👉 Biologically stable👉 Prosthetically functional
Take-home message
When you don’t have technology…
👉 You must become the technology.
Read anatomy. Trust your mental map. Execute with intention.
And finally…
Friday ended the right way:
👉 A big açaí👉 Zero guilt👉 And the feeling that we did things right

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