Rishi Sunak replies by saying "at least I stand by my commitments", accusing Starmer of being so indecisive that the only way he'd gamble is by "making an each-way bet".

Labour leader Sir Keir Starmer starts by saying the unwavering bravery of murdered Brianna Ghey's mother Esther has touched us all

He puts his first question to Sunak - asking about the PM's promise a year ago to bring NHS waiting lists down - "isn't he glad he didn't bet a grand [£1,000] on it?" the Labour leader asks.

Sunak begins by saying the thoughts of the country and MPs are with King Charles.

We wish him a speedy recovery, he says.

His thoughts are echoed by Labour leader Sir Keir Starmer.

Rishi Sunak is at the dispatch box in the House of Commons – marking the start of Prime Minister’s Questions.

Stay tuned by tapping Play at the top of this page, or by following our live text updates.

Henry Zeffman
Chief political correspondent

Sometimes it is obvious what a leader of the opposition will raise at Prime Minister’s Questions.

Today it is obvious what Rishi Sunak will want to find a way to talk about. In the last hour the Conservatives have released a costings document they commissioned from civil servants, appearing to suggest a Labour home insulation policy could cost £13bn a year.

Labour say this is a “ludicrous” figure based on “bogus assumptions”.

The cut and thrust in this area — see also the arguments over Labour’s £28bn green investment plan — shows the Conservatives are desperate to reclaim the mantle of economic competence, with opinion polling showing a steep decline in public support for their handling of the economy over recent years.

This is the final Prime Minister’s Questions before MPs head on recess for two weeks.

During the break from Westminster politics-as-usual, crucial by-elections will be held on 15 February to replace two former Conservative MPs.

The Kingswood by-election is taking place in South Gloucestershire after the resignation of Chris Skidmore, who quit over the government's energy plans.

In Northamptonshire, a vote will be held in Wellingborough to replace former veteran Tory backbencher Peter Bone, who was recalled after being suspended from Parliament for six weeks for breaching MPs' code of conduct.

We’ve prepared a candidate list for who is standing in Kingswood here, and those hoping to become the next MP for Wellingborough here.

• Kingswood by-election: Who can you vote for?
• The candidates set for Wellingborough by-election

The votes are latest electoral test for Prime Minister Rishi Sunak ahead of a general election expected to be held later this year.

The Tories had a torrid time in by-elections last year, losing four of the five seats they had previously held – including that of former cabinet minister Nadine Dorries in Mid-Bedfordshire.

We're poised to bring you all the latest from PMQs when it starts in the next few minutes.

You can also watch the session live at the top of this page.

Press the large Play button for BBC Two coverage (UK only), or choose BBC Parliament from 12:00 GMT.

The government’s announcement to put extra cash into NHS dentistry in England comes at a time when many are struggling to get dental treatment unless they go private.

In Bristol, people are queuing for a third consecutive day outside a new dental practice in the hope of registering as NHS patients.

St Pauls Dental Practice in Ashley Road opened for in-person registrations on Monday, after the previous Bupa Dental Care site closed last year despite a public campaign to keep it open.

Dentists running the new practice say they have enrolled 1,500 people in two days but will have to soon turn newcomers away.

"It is heartbreaking that we will have to say no to some people," says Dr Gauri Pradhan, principal dentist director.

Norman Stephenson, 66, has lived in St Paul's for most of his life and said he was unable to join the queue on Monday because of work commitments.

He has had to superglue his broken dentures while waiting.

"I'm very shocked at the situation with the dental practices, especially for people like myself - I'm a pensioner. It's diabolical," he said.

Image source, PA Media

Rishi Sunak has left Downing Street to make the short trip to Parliament for PMQs.

We'll bring you the key exchanges between the prime minister, Labour leader Sir Keir Starmer, the SNP's Stephen Flynn and others here on this page - and you can also watch along by clicking Play in the picture at the top.

Kate Whannel
Political reporter

If you're an occasional follower of PMQs, then welcome - it is great to have you with us. Here is a quick guide to the weekly question session.

First off, the prime minister is almost always asked, by a backbench MP, if he will “list his official engagements" for the day.

The prime minister usually replies along the lines of “I will be having meetings with ministerial colleagues and others”. He also often uses this question as an opportunity to comment on topical events – for example sending condolences to a bereaved family or congratulating a team on some sporting success.

Early on, the leader of the opposition - currently the leader of the Labour Party - gets the chance to ask six questions. This is often the rowdiest part of the session.

Then, it is the turn of the third largest party at Westminster - which is the Scottish National Party. They get two questions.

Other than those, any backbench MP can stand up to raise any issue – from the very local to the nakedly political.

In theory, the session starts at midday and lasts for 30 minutes – although it often runs over a little.

The government announced this morning that it plans to tackle the NHS dentistry crisis in England with a new package of incentives.

Dentists who set up practice in areas with poor access to NHS care - known as dental deserts - will be offered a £20,000 bonus.

Those who take on new patients and take on teeth cleaning in schools will also receive higher payments. The whole package of measures is set to cost £200m.

The government hopes the extra cash will encourage dentists to take on more NHS patients rather than rely solely on private work.

It estimates 1.5 million more treatments will be given over the next 12 months.

You can read more on the new plan here.

As usual we don’t know what will be raised during Prime Minister’s Questions, but it seems likely there will be some warm words for Kings Charles who has been diagnosed with cancer.

Dentistry could also come up, with the government announcing plans to offer £20,000 to dentists who set up practice in areas of England where there is poor access to NHS care. Labour has dismissed it as a temporary measure.

Labour leader Sir Keir Starmer might also mention Rishi Sunak’s £1,000 bet with Talk TV’s Piers Morgan over whether or not the government's plan to send asylum seekers to Rwanda plan will get off the ground before the general election.

Earlier today England’s patient safety commissioner urged the government to give urgent financial help to families of children left disabled by an epilepsy drug and women injured by pelvic mesh implants – MPs may want to hear the PM's thoughts on that.

There could also be questions about the government quietly dropping a commitment to increase the money disabled people in England can claim to adapt their homes – for example by installing stairlifts.

Rob Corp
Live reporter

Image source, PA Media

It's that time of the week again, when Rishi Sunak takes questions from MPs in the House of Commons.

We expect that Sunak will be keen to trumpet the government’s new policy for NHS dentistry in England - officially announced this morning - to offer £20,000 to dentists who set up practice in areas with poor access to NHS care.

We’re also expecting MPs to send their regards to the King after it was announced that he has been diagnosed with cancer.

We'll bring you the questions, answers and analysis from PMQs when things get under way at 12:00 GMT.

You can also click Play at the top of this page to watch live nearer the time.